Home / 724,426.98-999,695.43-402,140.94

Finding the Fourth Proportional to 724,426.98, 999,695.43 and 402,140.94

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Solution

The fourth proportional to 724,426.98, 999,695.43 and 402,140.94 is: 554,946.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,426.98 : 999,695.43 = 402,140.94 : x
  2. Step 2: Convert to fraction form
    724,426.98/999,695.43 = 402,140.94/x
  3. Step 3: Cross multiply
    724,426.98x = 999,695.43 × 402,140.94
  4. Step 4: Simplify right side
    724,426.98x = 402,018,459,933.90
  5. Step 5: Solve for x
    x = 402,018,459,933.90/724,426.98
  6. Step 6: Final answer
    x = 554,946.84

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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.