Home / 674,830.13-1,012,040.79-354,809.55

Finding the Fourth Proportional to 674,830.13, 1,012,040.79 and 354,809.55

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Solution

The fourth proportional to 674,830.13, 1,012,040.79 and 354,809.55 is: 532,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,830.13 : 1,012,040.79 = 354,809.55 : x
  2. Step 2: Convert to fraction form
    674,830.13/1,012,040.79 = 354,809.55/x
  3. Step 3: Cross multiply
    674,830.13x = 1,012,040.79 × 354,809.55
  4. Step 4: Simplify right side
    674,830.13x = 359,081,737,281.55
  5. Step 5: Solve for x
    x = 359,081,737,281.55/674,830.13
  6. Step 6: Final answer
    x = 532,106.86

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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.