Home / 781,498.60-1,078,513.52-437,331.56

Finding the Fourth Proportional to 781,498.60, 1,078,513.52 and 437,331.56

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Solution

The fourth proportional to 781,498.60, 1,078,513.52 and 437,331.56 is: 603,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,498.60 : 1,078,513.52 = 437,331.56 : x
  2. Step 2: Convert to fraction form
    781,498.60/1,078,513.52 = 437,331.56/x
  3. Step 3: Cross multiply
    781,498.60x = 1,078,513.52 × 437,331.56
  4. Step 4: Simplify right side
    781,498.60x = 471,667,992,603.47
  5. Step 5: Solve for x
    x = 471,667,992,603.47/781,498.60
  6. Step 6: Final answer
    x = 603,542.98

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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.