Home / 781,535.56-1,078,577.01-437,405.98

Finding the Fourth Proportional to 781,535.56, 1,078,577.01 and 437,405.98

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Solution

The fourth proportional to 781,535.56, 1,078,577.01 and 437,405.98 is: 603,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,535.56 : 1,078,577.01 = 437,405.98 : x
  2. Step 2: Convert to fraction form
    781,535.56/1,078,577.01 = 437,405.98/x
  3. Step 3: Cross multiply
    781,535.56x = 1,078,577.01 × 437,405.98
  4. Step 4: Simplify right side
    781,535.56x = 471,776,034,064.52
  5. Step 5: Solve for x
    x = 471,776,034,064.52/781,535.56
  6. Step 6: Final answer
    x = 603,652.68

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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.