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Finding the Fourth Proportional to 602,516.40, 903,515.40 and 302,881.20

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Solution

The fourth proportional to 602,516.40, 903,515.40 and 302,881.20 is: 454,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,516.40 : 903,515.40 = 302,881.20 : x
  2. Step 2: Convert to fraction form
    602,516.40/903,515.40 = 302,881.20/x
  3. Step 3: Cross multiply
    602,516.40x = 903,515.40 × 302,881.20
  4. Step 4: Simplify right side
    602,516.40x = 273,657,828,570.48
  5. Step 5: Solve for x
    x = 273,657,828,570.48/602,516.40
  6. Step 6: Final answer
    x = 454,191.50

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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.