Home / 708,020.33-977,065.13-385,729.43

Finding the Fourth Proportional to 708,020.33, 977,065.13 and 385,729.43

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Solution

The fourth proportional to 708,020.33, 977,065.13 and 385,729.43 is: 532,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,020.33 : 977,065.13 = 385,729.43 : x
  2. Step 2: Convert to fraction form
    708,020.33/977,065.13 = 385,729.43/x
  3. Step 3: Cross multiply
    708,020.33x = 977,065.13 × 385,729.43
  4. Step 4: Simplify right side
    708,020.33x = 376,882,771,746.77
  5. Step 5: Solve for x
    x = 376,882,771,746.77/708,020.33
  6. Step 6: Final answer
    x = 532,305.02

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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.