Home / 781,494.54-1,078,520.40-437,364.96

Finding the Fourth Proportional to 781,494.54, 1,078,520.40 and 437,364.96

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Solution

The fourth proportional to 781,494.54, 1,078,520.40 and 437,364.96 is: 603,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,494.54 : 1,078,520.40 = 437,364.96 : x
  2. Step 2: Convert to fraction form
    781,494.54/1,078,520.40 = 437,364.96/x
  3. Step 3: Cross multiply
    781,494.54x = 1,078,520.40 × 437,364.96
  4. Step 4: Simplify right side
    781,494.54x = 471,707,031,605.18
  5. Step 5: Solve for x
    x = 471,707,031,605.18/781,494.54
  6. Step 6: Final answer
    x = 603,596.07

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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.