Home / 718,914.61-992,095.32-396,627.31

Finding the Fourth Proportional to 718,914.61, 992,095.32 and 396,627.31

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Solution

The fourth proportional to 718,914.61, 992,095.32 and 396,627.31 is: 547,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,914.61 : 992,095.32 = 396,627.31 : x
  2. Step 2: Convert to fraction form
    718,914.61/992,095.32 = 396,627.31/x
  3. Step 3: Cross multiply
    718,914.61x = 992,095.32 × 396,627.31
  4. Step 4: Simplify right side
    718,914.61x = 393,492,098,035.19
  5. Step 5: Solve for x
    x = 393,492,098,035.19/718,914.61
  6. Step 6: Final answer
    x = 547,341.91

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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.