Home / 907,670.64-1,252,575.12-499,763.92

Finding the Fourth Proportional to 907,670.64, 1,252,575.12 and 499,763.92

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Solution

The fourth proportional to 907,670.64, 1,252,575.12 and 499,763.92 is: 689,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,670.64 : 1,252,575.12 = 499,763.92 : x
  2. Step 2: Convert to fraction form
    907,670.64/1,252,575.12 = 499,763.92/x
  3. Step 3: Cross multiply
    907,670.64x = 1,252,575.12 × 499,763.92
  4. Step 4: Simplify right side
    907,670.64x = 625,991,852,065.67
  5. Step 5: Solve for x
    x = 625,991,852,065.67/907,670.64
  6. Step 6: Final answer
    x = 689,668.50

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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.