Home / 725,065.40-1,087,598.10-410,137.40

Finding the Fourth Proportional to 725,065.40, 1,087,598.10 and 410,137.40

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Solution

The fourth proportional to 725,065.40, 1,087,598.10 and 410,137.40 is: 615,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,065.40 : 1,087,598.10 = 410,137.40 : x
  2. Step 2: Convert to fraction form
    725,065.40/1,087,598.10 = 410,137.40/x
  3. Step 3: Cross multiply
    725,065.40x = 1,087,598.10 × 410,137.40
  4. Step 4: Simplify right side
    725,065.40x = 446,064,656,978.94
  5. Step 5: Solve for x
    x = 446,064,656,978.94/725,065.40
  6. Step 6: Final answer
    x = 615,206.10

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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.