Home / 814,251.15-1,123,644.87-470,075.47

Finding the Fourth Proportional to 814,251.15, 1,123,644.87 and 470,075.47

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Solution

The fourth proportional to 814,251.15, 1,123,644.87 and 470,075.47 is: 648,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,251.15 : 1,123,644.87 = 470,075.47 : x
  2. Step 2: Convert to fraction form
    814,251.15/1,123,644.87 = 470,075.47/x
  3. Step 3: Cross multiply
    814,251.15x = 1,123,644.87 × 470,075.47
  4. Step 4: Simplify right side
    814,251.15x = 528,197,887,569.23
  5. Step 5: Solve for x
    x = 528,197,887,569.23/814,251.15
  6. Step 6: Final answer
    x = 648,691.61

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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.