Home / 753,155.61-1,039,353.51-413,623.86

Finding the Fourth Proportional to 753,155.61, 1,039,353.51 and 413,623.86

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Solution

The fourth proportional to 753,155.61, 1,039,353.51 and 413,623.86 is: 570,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,155.61 : 1,039,353.51 = 413,623.86 : x
  2. Step 2: Convert to fraction form
    753,155.61/1,039,353.51 = 413,623.86/x
  3. Step 3: Cross multiply
    753,155.61x = 1,039,353.51 × 413,623.86
  4. Step 4: Simplify right side
    753,155.61x = 429,901,410,710.75
  5. Step 5: Solve for x
    x = 429,901,410,710.75/753,155.61
  6. Step 6: Final answer
    x = 570,800.25

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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.