Home / 708,276.56-977,393.21-385,979.72

Finding the Fourth Proportional to 708,276.56, 977,393.21 and 385,979.72

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Solution

The fourth proportional to 708,276.56, 977,393.21 and 385,979.72 is: 532,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,276.56 : 977,393.21 = 385,979.72 : x
  2. Step 2: Convert to fraction form
    708,276.56/977,393.21 = 385,979.72/x
  3. Step 3: Cross multiply
    708,276.56x = 977,393.21 × 385,979.72
  4. Step 4: Simplify right side
    708,276.56x = 377,253,950,708.84
  5. Step 5: Solve for x
    x = 377,253,950,708.84/708,276.56
  6. Step 6: Final answer
    x = 532,636.51

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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.