Home / 1,438,363.80-2,157,545.70-906,485.40

Finding the Fourth Proportional to 1,438,363.80, 2,157,545.70 and 906,485.40

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Solution

The fourth proportional to 1,438,363.80, 2,157,545.70 and 906,485.40 is: 1,359,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,363.80 : 2,157,545.70 = 906,485.40 : x
  2. Step 2: Convert to fraction form
    1,438,363.80/2,157,545.70 = 906,485.40/x
  3. Step 3: Cross multiply
    1,438,363.80x = 2,157,545.70 × 906,485.40
  4. Step 4: Simplify right side
    1,438,363.80x = 1,955,783,676,882.78
  5. Step 5: Solve for x
    x = 1,955,783,676,882.78/1,438,363.80
  6. Step 6: Final answer
    x = 1,359,728.10

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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.