Home / 718,315.52-990,245.05-565,087.39

Finding the Fourth Proportional to 718,315.52, 990,245.05 and 565,087.39

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Solution

The fourth proportional to 718,315.52, 990,245.05 and 565,087.39 is: 779,010.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,315.52 : 990,245.05 = 565,087.39 : x
  2. Step 2: Convert to fraction form
    718,315.52/990,245.05 = 565,087.39/x
  3. Step 3: Cross multiply
    718,315.52x = 990,245.05 × 565,087.39
  4. Step 4: Simplify right side
    718,315.52x = 559,574,986,876.59
  5. Step 5: Solve for x
    x = 559,574,986,876.59/718,315.52
  6. Step 6: Final answer
    x = 779,010.02

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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.