Home / 916,023.36-1,374,159.96-316,823.88

Finding the Fourth Proportional to 916,023.36, 1,374,159.96 and 316,823.88

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Solution

The fourth proportional to 916,023.36, 1,374,159.96 and 316,823.88 is: 475,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,023.36 : 1,374,159.96 = 316,823.88 : x
  2. Step 2: Convert to fraction form
    916,023.36/1,374,159.96 = 316,823.88/x
  3. Step 3: Cross multiply
    916,023.36x = 1,374,159.96 × 316,823.88
  4. Step 4: Simplify right side
    916,023.36x = 435,366,690,267.85
  5. Step 5: Solve for x
    x = 435,366,690,267.85/916,023.36
  6. Step 6: Final answer
    x = 475,279.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.