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Finding the Fourth Proportional to 708,459.24, 977,659.16 and 386,166.54

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Solution

The fourth proportional to 708,459.24, 977,659.16 and 386,166.54 is: 532,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,459.24 : 977,659.16 = 386,166.54 : x
  2. Step 2: Convert to fraction form
    708,459.24/977,659.16 = 386,166.54/x
  3. Step 3: Cross multiply
    708,459.24x = 977,659.16 × 386,166.54
  4. Step 4: Simplify right side
    708,459.24x = 377,539,255,116.51
  5. Step 5: Solve for x
    x = 377,539,255,116.51/708,459.24
  6. Step 6: Final answer
    x = 532,901.87

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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.