Home / 718,948.08-992,264.67-428,595.27

Finding the Fourth Proportional to 718,948.08, 992,264.67 and 428,595.27

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Solution

The fourth proportional to 718,948.08, 992,264.67 and 428,595.27 is: 591,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,948.08 : 992,264.67 = 428,595.27 : x
  2. Step 2: Convert to fraction form
    718,948.08/992,264.67 = 428,595.27/x
  3. Step 3: Cross multiply
    718,948.08x = 992,264.67 × 428,595.27
  4. Step 4: Simplify right side
    718,948.08x = 425,279,944,150.11
  5. Step 5: Solve for x
    x = 425,279,944,150.11/718,948.08
  6. Step 6: Final answer
    x = 591,530.82

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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.