Home / 724,583.18-999,878.52-402,293.20

Finding the Fourth Proportional to 724,583.18, 999,878.52 and 402,293.20

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Solution

The fourth proportional to 724,583.18, 999,878.52 and 402,293.20 is: 555,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,583.18 : 999,878.52 = 402,293.20 : x
  2. Step 2: Convert to fraction form
    724,583.18/999,878.52 = 402,293.20/x
  3. Step 3: Cross multiply
    724,583.18x = 999,878.52 × 402,293.20
  4. Step 4: Simplify right side
    724,583.18x = 402,244,329,422.06
  5. Step 5: Solve for x
    x = 402,244,329,422.06/724,583.18
  6. Step 6: Final answer
    x = 555,138.93

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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.