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Finding the Fourth Proportional to 724,281.03, 999,426.75 and 402,004.71

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Solution

The fourth proportional to 724,281.03, 999,426.75 and 402,004.71 is: 554,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,281.03 : 999,426.75 = 402,004.71 : x
  2. Step 2: Convert to fraction form
    724,281.03/999,426.75 = 402,004.71/x
  3. Step 3: Cross multiply
    724,281.03x = 999,426.75 × 402,004.71
  4. Step 4: Simplify right side
    724,281.03x = 401,774,260,799.99
  5. Step 5: Solve for x
    x = 401,774,260,799.99/724,281.03
  6. Step 6: Final answer
    x = 554,721.50

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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.