Home / 972,076.10-1,458,114.15-812,643.80

Finding the Fourth Proportional to 972,076.10, 1,458,114.15 and 812,643.80

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Solution

The fourth proportional to 972,076.10, 1,458,114.15 and 812,643.80 is: 1,218,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,076.10 : 1,458,114.15 = 812,643.80 : x
  2. Step 2: Convert to fraction form
    972,076.10/1,458,114.15 = 812,643.80/x
  3. Step 3: Cross multiply
    972,076.10x = 1,458,114.15 × 812,643.80
  4. Step 4: Simplify right side
    972,076.10x = 1,184,927,423,689.77
  5. Step 5: Solve for x
    x = 1,184,927,423,689.77/972,076.10
  6. Step 6: Final answer
    x = 1,218,965.70

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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.