Home / 708,392.43-977,582.30-386,102.79

Finding the Fourth Proportional to 708,392.43, 977,582.30 and 386,102.79

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Solution

The fourth proportional to 708,392.43, 977,582.30 and 386,102.79 is: 532,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,392.43 : 977,582.30 = 386,102.79 : x
  2. Step 2: Convert to fraction form
    708,392.43/977,582.30 = 386,102.79/x
  3. Step 3: Cross multiply
    708,392.43x = 977,582.30 × 386,102.79
  4. Step 4: Simplify right side
    708,392.43x = 377,447,251,554.10
  5. Step 5: Solve for x
    x = 377,447,251,554.10/708,392.43
  6. Step 6: Final answer
    x = 532,822.25

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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.