Home / 724,368.18-999,627.30-402,077.52

Finding the Fourth Proportional to 724,368.18, 999,627.30 and 402,077.52

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Solution

The fourth proportional to 724,368.18, 999,627.30 and 402,077.52 is: 554,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,368.18 : 999,627.30 = 402,077.52 : x
  2. Step 2: Convert to fraction form
    724,368.18/999,627.30 = 402,077.52/x
  3. Step 3: Cross multiply
    724,368.18x = 999,627.30 × 402,077.52
  4. Step 4: Simplify right side
    724,368.18x = 401,927,665,708.30
  5. Step 5: Solve for x
    x = 401,927,665,708.30/724,368.18
  6. Step 6: Final answer
    x = 554,866.54

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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.