Home / 513,766.61-709,140.53-298,948.31

Finding the Fourth Proportional to 513,766.61, 709,140.53 and 298,948.31

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Solution

The fourth proportional to 513,766.61, 709,140.53 and 298,948.31 is: 412,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,766.61 : 709,140.53 = 298,948.31 : x
  2. Step 2: Convert to fraction form
    513,766.61/709,140.53 = 298,948.31/x
  3. Step 3: Cross multiply
    513,766.61x = 709,140.53 × 298,948.31
  4. Step 4: Simplify right side
    513,766.61x = 211,996,360,197.67
  5. Step 5: Solve for x
    x = 211,996,360,197.67/513,766.61
  6. Step 6: Final answer
    x = 412,631.65

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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.