Home / 487,690.16-672,980.76-272,793.44

Finding the Fourth Proportional to 487,690.16, 672,980.76 and 272,793.44

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Solution

The fourth proportional to 487,690.16, 672,980.76 and 272,793.44 is: 376,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,690.16 : 672,980.76 = 272,793.44 : x
  2. Step 2: Convert to fraction form
    487,690.16/672,980.76 = 272,793.44/x
  3. Step 3: Cross multiply
    487,690.16x = 672,980.76 × 272,793.44
  4. Step 4: Simplify right side
    487,690.16x = 183,584,736,574.21
  5. Step 5: Solve for x
    x = 183,584,736,574.21/487,690.16
  6. Step 6: Final answer
    x = 376,437.24

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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.