Home / 874,624.32-1,206,985.76-492,657.12

Finding the Fourth Proportional to 874,624.32, 1,206,985.76 and 492,657.12

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Solution

The fourth proportional to 874,624.32, 1,206,985.76 and 492,657.12 is: 679,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,624.32 : 1,206,985.76 = 492,657.12 : x
  2. Step 2: Convert to fraction form
    874,624.32/1,206,985.76 = 492,657.12/x
  3. Step 3: Cross multiply
    874,624.32x = 1,206,985.76 × 492,657.12
  4. Step 4: Simplify right side
    874,624.32x = 594,630,128,402.61
  5. Step 5: Solve for x
    x = 594,630,128,402.61/874,624.32
  6. Step 6: Final answer
    x = 679,869.19

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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.