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Finding the Fourth Proportional to 718,084.48, 990,898.32 and 416,297.92

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Solution

The fourth proportional to 718,084.48, 990,898.32 and 416,297.92 is: 574,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,084.48 : 990,898.32 = 416,297.92 : x
  2. Step 2: Convert to fraction form
    718,084.48/990,898.32 = 416,297.92/x
  3. Step 3: Cross multiply
    718,084.48x = 990,898.32 × 416,297.92
  4. Step 4: Simplify right side
    718,084.48x = 412,508,909,547.49
  5. Step 5: Solve for x
    x = 412,508,909,547.49/718,084.48
  6. Step 6: Final answer
    x = 574,457.35

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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.