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Finding the Fourth Proportional to 868,401.60, 1,302,602.40 and 802,046.40

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Solution

The fourth proportional to 868,401.60, 1,302,602.40 and 802,046.40 is: 1,203,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,401.60 : 1,302,602.40 = 802,046.40 : x
  2. Step 2: Convert to fraction form
    868,401.60/1,302,602.40 = 802,046.40/x
  3. Step 3: Cross multiply
    868,401.60x = 1,302,602.40 × 802,046.40
  4. Step 4: Simplify right side
    868,401.60x = 1,044,747,565,551.36
  5. Step 5: Solve for x
    x = 1,044,747,565,551.36/868,401.60
  6. Step 6: Final answer
    x = 1,203,069.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.