Home / 917,712.24-1,266,459.48-515,318.64

Finding the Fourth Proportional to 917,712.24, 1,266,459.48 and 515,318.64

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Solution

The fourth proportional to 917,712.24, 1,266,459.48 and 515,318.64 is: 711,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,712.24 : 1,266,459.48 = 515,318.64 : x
  2. Step 2: Convert to fraction form
    917,712.24/1,266,459.48 = 515,318.64/x
  3. Step 3: Cross multiply
    917,712.24x = 1,266,459.48 × 515,318.64
  4. Step 4: Simplify right side
    917,712.24x = 652,630,176,848.71
  5. Step 5: Solve for x
    x = 652,630,176,848.71/917,712.24
  6. Step 6: Final answer
    x = 711,149.04

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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.