Home / 1,420,005.70-2,129,490.15-473,407.30

Finding the Fourth Proportional to 1,420,005.70, 2,129,490.15 and 473,407.30

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Solution

The fourth proportional to 1,420,005.70, 2,129,490.15 and 473,407.30 is: 709,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,005.70 : 2,129,490.15 = 473,407.30 : x
  2. Step 2: Convert to fraction form
    1,420,005.70/2,129,490.15 = 473,407.30/x
  3. Step 3: Cross multiply
    1,420,005.70x = 2,129,490.15 × 473,407.30
  4. Step 4: Simplify right side
    1,420,005.70x = 1,008,116,182,288.10
  5. Step 5: Solve for x
    x = 1,008,116,182,288.10/1,420,005.70
  6. Step 6: Final answer
    x = 709,938.12

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1.5x scale

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.