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Finding the Fourth Proportional to 708,166.29, 977,256.86 and 385,879.17

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Solution

The fourth proportional to 708,166.29, 977,256.86 and 385,879.17 is: 532,506.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,166.29 : 977,256.86 = 385,879.17 : x
  2. Step 2: Convert to fraction form
    708,166.29/977,256.86 = 385,879.17/x
  3. Step 3: Cross multiply
    708,166.29x = 977,256.86 × 385,879.17
  4. Step 4: Simplify right side
    708,166.29x = 377,103,064,084.21
  5. Step 5: Solve for x
    x = 377,103,064,084.21/708,166.29
  6. Step 6: Final answer
    x = 532,506.38

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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.