Home / 817,021.90-1,127,474.02-454,437.96

Finding the Fourth Proportional to 817,021.90, 1,127,474.02 and 454,437.96

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Solution

The fourth proportional to 817,021.90, 1,127,474.02 and 454,437.96 is: 627,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,021.90 : 1,127,474.02 = 454,437.96 : x
  2. Step 2: Convert to fraction form
    817,021.90/1,127,474.02 = 454,437.96/x
  3. Step 3: Cross multiply
    817,021.90x = 1,127,474.02 × 454,437.96
  4. Step 4: Simplify right side
    817,021.90x = 512,366,985,692.24
  5. Step 5: Solve for x
    x = 512,366,985,692.24/817,021.90
  6. Step 6: Final answer
    x = 627,115.36

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1.5x scale

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.