Home / 972,625.40-1,458,246.90-440,401.40

Finding the Fourth Proportional to 972,625.40, 1,458,246.90 and 440,401.40

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Solution

The fourth proportional to 972,625.40, 1,458,246.90 and 440,401.40 is: 660,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,625.40 : 1,458,246.90 = 440,401.40 : x
  2. Step 2: Convert to fraction form
    972,625.40/1,458,246.90 = 440,401.40/x
  3. Step 3: Cross multiply
    972,625.40x = 1,458,246.90 × 440,401.40
  4. Step 4: Simplify right side
    972,625.40x = 642,213,976,305.66
  5. Step 5: Solve for x
    x = 642,213,976,305.66/972,625.40
  6. Step 6: Final answer
    x = 660,289.13

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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.