Home / 725,620.20-1,088,430.30-524,999.40

Finding the Fourth Proportional to 725,620.20, 1,088,430.30 and 524,999.40

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Solution

The fourth proportional to 725,620.20, 1,088,430.30 and 524,999.40 is: 787,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,620.20 : 1,088,430.30 = 524,999.40 : x
  2. Step 2: Convert to fraction form
    725,620.20/1,088,430.30 = 524,999.40/x
  3. Step 3: Cross multiply
    725,620.20x = 1,088,430.30 × 524,999.40
  4. Step 4: Simplify right side
    725,620.20x = 571,425,254,441.82
  5. Step 5: Solve for x
    x = 571,425,254,441.82/725,620.20
  6. Step 6: Final answer
    x = 787,499.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.