Home / 708,428.46-977,602.86-386,131.62

Finding the Fourth Proportional to 708,428.46, 977,602.86 and 386,131.62

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Solution

The fourth proportional to 708,428.46, 977,602.86 and 386,131.62 is: 532,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,428.46 : 977,602.86 = 386,131.62 : x
  2. Step 2: Convert to fraction form
    708,428.46/977,602.86 = 386,131.62/x
  3. Step 3: Cross multiply
    708,428.46x = 977,602.86 × 386,131.62
  4. Step 4: Simplify right side
    708,428.46x = 377,483,376,048.43
  5. Step 5: Solve for x
    x = 377,483,376,048.43/708,428.46
  6. Step 6: Final answer
    x = 532,846.15

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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.