Home / 708,356.08-977,554.28-402,426.91

Finding the Fourth Proportional to 708,356.08, 977,554.28 and 402,426.91

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Solution

The fourth proportional to 708,356.08, 977,554.28 and 402,426.91 is: 555,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,356.08 : 977,554.28 = 402,426.91 : x
  2. Step 2: Convert to fraction form
    708,356.08/977,554.28 = 402,426.91/x
  3. Step 3: Cross multiply
    708,356.08x = 977,554.28 × 402,426.91
  4. Step 4: Simplify right side
    708,356.08x = 393,394,142,723.29
  5. Step 5: Solve for x
    x = 393,394,142,723.29/708,356.08
  6. Step 6: Final answer
    x = 555,362.13

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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.