Home / 570,070.68-786,982.40-328,306.57

Finding the Fourth Proportional to 570,070.68, 786,982.40 and 328,306.57

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Solution

The fourth proportional to 570,070.68, 786,982.40 and 328,306.57 is: 453,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,070.68 : 786,982.40 = 328,306.57 : x
  2. Step 2: Convert to fraction form
    570,070.68/786,982.40 = 328,306.57/x
  3. Step 3: Cross multiply
    570,070.68x = 786,982.40 × 328,306.57
  4. Step 4: Simplify right side
    570,070.68x = 258,371,490,016.53
  5. Step 5: Solve for x
    x = 258,371,490,016.53/570,070.68
  6. Step 6: Final answer
    x = 453,227.12

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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.