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Finding the Fourth Proportional to 708,046.79, 977,104.67 and 385,756.88

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Solution

The fourth proportional to 708,046.79, 977,104.67 and 385,756.88 is: 532,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,046.79 : 977,104.67 = 385,756.88 : x
  2. Step 2: Convert to fraction form
    708,046.79/977,104.67 = 385,756.88/x
  3. Step 3: Cross multiply
    708,046.79x = 977,104.67 × 385,756.88
  4. Step 4: Simplify right side
    708,046.79x = 376,924,842,118.32
  5. Step 5: Solve for x
    x = 376,924,842,118.32/708,046.79
  6. Step 6: Final answer
    x = 532,344.54

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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.