Home / 725,700.20-1,087,643.10-370,855.40

Finding the Fourth Proportional to 725,700.20, 1,087,643.10 and 370,855.40

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Solution

The fourth proportional to 725,700.20, 1,087,643.10 and 370,855.40 is: 555,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,700.20 : 1,087,643.10 = 370,855.40 : x
  2. Step 2: Convert to fraction form
    725,700.20/1,087,643.10 = 370,855.40/x
  3. Step 3: Cross multiply
    725,700.20x = 1,087,643.10 × 370,855.40
  4. Step 4: Simplify right side
    725,700.20x = 403,358,316,907.74
  5. Step 5: Solve for x
    x = 403,358,316,907.74/725,700.20
  6. Step 6: Final answer
    x = 555,819.49

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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.