Home / 960,620,588.40-1,325,657,545.68-520,587,440.40

Finding the Fourth Proportional to 960,620,588.40, 1,325,657,545.68 and 520,587,440.40

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Solution

The fourth proportional to 960,620,588.40, 1,325,657,545.68 and 520,587,440.40 is: 718,411,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,620,588.40 : 1,325,657,545.68 = 520,587,440.40 : x
  2. Step 2: Convert to fraction form
    960,620,588.40/1,325,657,545.68 = 520,587,440.40/x
  3. Step 3: Cross multiply
    960,620,588.40x = 1,325,657,545.68 × 520,587,440.40
  4. Step 4: Simplify right side
    960,620,588.40x = 690,120,668,552,497,280
  5. Step 5: Solve for x
    x = 690,120,668,552,497,280/960,620,588.40
  6. Step 6: Final answer
    x = 718,411,282.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.