Home / 753,444.86-1,039,749.63-413,905.82

Finding the Fourth Proportional to 753,444.86, 1,039,749.63 and 413,905.82

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Solution

The fourth proportional to 753,444.86, 1,039,749.63 and 413,905.82 is: 571,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,444.86 : 1,039,749.63 = 413,905.82 : x
  2. Step 2: Convert to fraction form
    753,444.86/1,039,749.63 = 413,905.82/x
  3. Step 3: Cross multiply
    753,444.86x = 1,039,749.63 × 413,905.82
  4. Step 4: Simplify right side
    753,444.86x = 430,358,423,199.85
  5. Step 5: Solve for x
    x = 430,358,423,199.85/753,444.86
  6. Step 6: Final answer
    x = 571,187.68

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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.