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Finding the Fourth Proportional to 724,594.48, 999,971.64 and 402,304.64

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Solution

The fourth proportional to 724,594.48, 999,971.64 and 402,304.64 is: 555,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,594.48 : 999,971.64 = 402,304.64 : x
  2. Step 2: Convert to fraction form
    724,594.48/999,971.64 = 402,304.64/x
  3. Step 3: Cross multiply
    724,594.48x = 999,971.64 × 402,304.64
  4. Step 4: Simplify right side
    724,594.48x = 402,293,225,640.55
  5. Step 5: Solve for x
    x = 402,293,225,640.55/724,594.48
  6. Step 6: Final answer
    x = 555,197.75

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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.