Home / 747,182.40-1,030,799.70-489,122.46

Finding the Fourth Proportional to 747,182.40, 1,030,799.70 and 489,122.46

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Solution

The fourth proportional to 747,182.40, 1,030,799.70 and 489,122.46 is: 674,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,182.40 : 1,030,799.70 = 489,122.46 : x
  2. Step 2: Convert to fraction form
    747,182.40/1,030,799.70 = 489,122.46/x
  3. Step 3: Cross multiply
    747,182.40x = 1,030,799.70 × 489,122.46
  4. Step 4: Simplify right side
    747,182.40x = 504,187,285,031.26
  5. Step 5: Solve for x
    x = 504,187,285,031.26/747,182.40
  6. Step 6: Final answer
    x = 674,784.74

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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.