Home / 900,142.89-1,350,878.91-426,829.92

Finding the Fourth Proportional to 900,142.89, 1,350,878.91 and 426,829.92

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Solution

The fourth proportional to 900,142.89, 1,350,878.91 and 426,829.92 is: 640,560.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,142.89 : 1,350,878.91 = 426,829.92 : x
  2. Step 2: Convert to fraction form
    900,142.89/1,350,878.91 = 426,829.92/x
  3. Step 3: Cross multiply
    900,142.89x = 1,350,878.91 × 426,829.92
  4. Step 4: Simplify right side
    900,142.89x = 576,595,537,084.99
  5. Step 5: Solve for x
    x = 576,595,537,084.99/900,142.89
  6. Step 6: Final answer
    x = 640,560.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.