Home / 907,575.20-1,252,482.96-499,720.16

Finding the Fourth Proportional to 907,575.20, 1,252,482.96 and 499,720.16

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Solution

The fourth proportional to 907,575.20, 1,252,482.96 and 499,720.16 is: 689,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,575.20 : 1,252,482.96 = 499,720.16 : x
  2. Step 2: Convert to fraction form
    907,575.20/1,252,482.96 = 499,720.16/x
  3. Step 3: Cross multiply
    907,575.20x = 1,252,482.96 × 499,720.16
  4. Step 4: Simplify right side
    907,575.20x = 625,890,985,168.47
  5. Step 5: Solve for x
    x = 625,890,985,168.47/907,575.20
  6. Step 6: Final answer
    x = 689,629.89

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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.