Home / 972,647.40-1,458,279.90-440,423.40

Finding the Fourth Proportional to 972,647.40, 1,458,279.90 and 440,423.40

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Solution

The fourth proportional to 972,647.40, 1,458,279.90 and 440,423.40 is: 660,322.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,647.40 : 1,458,279.90 = 440,423.40 : x
  2. Step 2: Convert to fraction form
    972,647.40/1,458,279.90 = 440,423.40/x
  3. Step 3: Cross multiply
    972,647.40x = 1,458,279.90 × 440,423.40
  4. Step 4: Simplify right side
    972,647.40x = 642,260,591,709.66
  5. Step 5: Solve for x
    x = 642,260,591,709.66/972,647.40
  6. Step 6: Final answer
    x = 660,322.12

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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.