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Finding the Fourth Proportional to 972,562.40, 1,458,152.40 and 440,338.40

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Solution

The fourth proportional to 972,562.40, 1,458,152.40 and 440,338.40 is: 660,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,562.40 : 1,458,152.40 = 440,338.40 : x
  2. Step 2: Convert to fraction form
    972,562.40/1,458,152.40 = 440,338.40/x
  3. Step 3: Cross multiply
    972,562.40x = 1,458,152.40 × 440,338.40
  4. Step 4: Simplify right side
    972,562.40x = 642,080,494,772.16
  5. Step 5: Solve for x
    x = 642,080,494,772.16/972,562.40
  6. Step 6: Final answer
    x = 660,194.65

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1.5x scale

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.