Home / 1,012,420.50-1,397,169.45-559,740.66

Finding the Fourth Proportional to 1,012,420.50, 1,397,169.45 and 559,740.66

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Solution

The fourth proportional to 1,012,420.50, 1,397,169.45 and 559,740.66 is: 772,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,420.50 : 1,397,169.45 = 559,740.66 : x
  2. Step 2: Convert to fraction form
    1,012,420.50/1,397,169.45 = 559,740.66/x
  3. Step 3: Cross multiply
    1,012,420.50x = 1,397,169.45 × 559,740.66
  4. Step 4: Simplify right side
    1,012,420.50x = 782,052,550,074.84
  5. Step 5: Solve for x
    x = 782,052,550,074.84/1,012,420.50
  6. Step 6: Final answer
    x = 772,458.23

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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.