Home / 781,589.86-1,078,613.34-437,423.08

Finding the Fourth Proportional to 781,589.86, 1,078,613.34 and 437,423.08

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Solution

The fourth proportional to 781,589.86, 1,078,613.34 and 437,423.08 is: 603,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,589.86 : 1,078,613.34 = 437,423.08 : x
  2. Step 2: Convert to fraction form
    781,589.86/1,078,613.34 = 437,423.08/x
  3. Step 3: Cross multiply
    781,589.86x = 1,078,613.34 × 437,423.08
  4. Step 4: Simplify right side
    781,589.86x = 471,810,369,311.89
  5. Step 5: Solve for x
    x = 471,810,369,311.89/781,589.86
  6. Step 6: Final answer
    x = 603,654.67

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Double scale
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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.