Home / 1,425,223.87-1,966,805.92-771,847.81

Finding the Fourth Proportional to 1,425,223.87, 1,966,805.92 and 771,847.81

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Solution

The fourth proportional to 1,425,223.87, 1,966,805.92 and 771,847.81 is: 1,065,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,223.87 : 1,966,805.92 = 771,847.81 : x
  2. Step 2: Convert to fraction form
    1,425,223.87/1,966,805.92 = 771,847.81/x
  3. Step 3: Cross multiply
    1,425,223.87x = 1,966,805.92 × 771,847.81
  4. Step 4: Simplify right side
    1,425,223.87x = 1,518,074,842,047.04
  5. Step 5: Solve for x
    x = 1,518,074,842,047.04/1,425,223.87
  6. Step 6: Final answer
    x = 1,065,148.34

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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.