Home / 900,552.81-1,242,772.68-492,645.90

Finding the Fourth Proportional to 900,552.81, 1,242,772.68 and 492,645.90

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Solution

The fourth proportional to 900,552.81, 1,242,772.68 and 492,645.90 is: 679,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,552.81 : 1,242,772.68 = 492,645.90 : x
  2. Step 2: Convert to fraction form
    900,552.81/1,242,772.68 = 492,645.90/x
  3. Step 3: Cross multiply
    900,552.81x = 1,242,772.68 × 492,645.90
  4. Step 4: Simplify right side
    900,552.81x = 612,246,865,434.01
  5. Step 5: Solve for x
    x = 612,246,865,434.01/900,552.81
  6. Step 6: Final answer
    x = 679,856.70

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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.