Home / 719,974.72-992,905.32-490,874.32

Finding the Fourth Proportional to 719,974.72, 992,905.32 and 490,874.32

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Solution

The fourth proportional to 719,974.72, 992,905.32 and 490,874.32 is: 676,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,974.72 : 992,905.32 = 490,874.32 : x
  2. Step 2: Convert to fraction form
    719,974.72/992,905.32 = 490,874.32/x
  3. Step 3: Cross multiply
    719,974.72x = 992,905.32 × 490,874.32
  4. Step 4: Simplify right side
    719,974.72x = 487,391,723,779.38
  5. Step 5: Solve for x
    x = 487,391,723,779.38/719,974.72
  6. Step 6: Final answer
    x = 676,956.72

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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.