Home / 526,918.60-788,045.10-442,937.80

Finding the Fourth Proportional to 526,918.60, 788,045.10 and 442,937.80

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Solution

The fourth proportional to 526,918.60, 788,045.10 and 442,937.80 is: 662,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,918.60 : 788,045.10 = 442,937.80 : x
  2. Step 2: Convert to fraction form
    526,918.60/788,045.10 = 442,937.80/x
  3. Step 3: Cross multiply
    526,918.60x = 788,045.10 × 442,937.80
  4. Step 4: Simplify right side
    526,918.60x = 349,054,962,894.78
  5. Step 5: Solve for x
    x = 349,054,962,894.78/526,918.60
  6. Step 6: Final answer
    x = 662,445.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.