Home / 868,000.90-1,302,001.35-369,300.10

Finding the Fourth Proportional to 868,000.90, 1,302,001.35 and 369,300.10

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Solution

The fourth proportional to 868,000.90, 1,302,001.35 and 369,300.10 is: 553,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,000.90 : 1,302,001.35 = 369,300.10 : x
  2. Step 2: Convert to fraction form
    868,000.90/1,302,001.35 = 369,300.10/x
  3. Step 3: Cross multiply
    868,000.90x = 1,302,001.35 × 369,300.10
  4. Step 4: Simplify right side
    868,000.90x = 480,829,228,755.14
  5. Step 5: Solve for x
    x = 480,829,228,755.14/868,000.90
  6. Step 6: Final answer
    x = 553,950.15

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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.