Home / 724,417.98-999,646.81-402,102.71

Finding the Fourth Proportional to 724,417.98, 999,646.81 and 402,102.71

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Solution

The fourth proportional to 724,417.98, 999,646.81 and 402,102.71 is: 554,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,417.98 : 999,646.81 = 402,102.71 : x
  2. Step 2: Convert to fraction form
    724,417.98/999,646.81 = 402,102.71/x
  3. Step 3: Cross multiply
    724,417.98x = 999,646.81 × 402,102.71
  4. Step 4: Simplify right side
    724,417.98x = 401,960,684,335.11
  5. Step 5: Solve for x
    x = 401,960,684,335.11/724,417.98
  6. Step 6: Final answer
    x = 554,873.98

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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.