Home / 907,291.20-1,252,051.92-499,384.32

Finding the Fourth Proportional to 907,291.20, 1,252,051.92 and 499,384.32

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Solution

The fourth proportional to 907,291.20, 1,252,051.92 and 499,384.32 is: 689,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,291.20 : 1,252,051.92 = 499,384.32 : x
  2. Step 2: Convert to fraction form
    907,291.20/1,252,051.92 = 499,384.32/x
  3. Step 3: Cross multiply
    907,291.20x = 1,252,051.92 × 499,384.32
  4. Step 4: Simplify right side
    907,291.20x = 625,255,096,673.89
  5. Step 5: Solve for x
    x = 625,255,096,673.89/907,291.20
  6. Step 6: Final answer
    x = 689,144.89

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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.