Home / 1,420,006.20-2,129,490.90-473,407.80

Finding the Fourth Proportional to 1,420,006.20, 2,129,490.90 and 473,407.80

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Solution

The fourth proportional to 1,420,006.20, 2,129,490.90 and 473,407.80 is: 709,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,006.20 : 2,129,490.90 = 473,407.80 : x
  2. Step 2: Convert to fraction form
    1,420,006.20/2,129,490.90 = 473,407.80/x
  3. Step 3: Cross multiply
    1,420,006.20x = 2,129,490.90 × 473,407.80
  4. Step 4: Simplify right side
    1,420,006.20x = 1,008,117,602,089.02
  5. Step 5: Solve for x
    x = 1,008,117,602,089.02/1,420,006.20
  6. Step 6: Final answer
    x = 709,938.87

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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.