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Finding the Fourth Proportional to 506,319.04, 698,701.44 and 279,968.32

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Solution

The fourth proportional to 506,319.04, 698,701.44 and 279,968.32 is: 386,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,319.04 : 698,701.44 = 279,968.32 : x
  2. Step 2: Convert to fraction form
    506,319.04/698,701.44 = 279,968.32/x
  3. Step 3: Cross multiply
    506,319.04x = 698,701.44 × 279,968.32
  4. Step 4: Simplify right side
    506,319.04x = 195,614,268,338.38
  5. Step 5: Solve for x
    x = 195,614,268,338.38/506,319.04
  6. Step 6: Final answer
    x = 386,345.87

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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.