Home / 912,970.40-1,370,578.80-576,010.40

Finding the Fourth Proportional to 912,970.40, 1,370,578.80 and 576,010.40

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Solution

The fourth proportional to 912,970.40, 1,370,578.80 and 576,010.40 is: 864,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,970.40 : 1,370,578.80 = 576,010.40 : x
  2. Step 2: Convert to fraction form
    912,970.40/1,370,578.80 = 576,010.40/x
  3. Step 3: Cross multiply
    912,970.40x = 1,370,578.80 × 576,010.40
  4. Step 4: Simplify right side
    912,970.40x = 789,467,642,819.52
  5. Step 5: Solve for x
    x = 789,467,642,819.52/912,970.40
  6. Step 6: Final answer
    x = 864,724.25

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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.