Home / 1,425,117.65-1,966,664.27-771,744.81

Finding the Fourth Proportional to 1,425,117.65, 1,966,664.27 and 771,744.81

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Solution

The fourth proportional to 1,425,117.65, 1,966,664.27 and 771,744.81 is: 1,065,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,117.65 : 1,966,664.27 = 771,744.81 : x
  2. Step 2: Convert to fraction form
    1,425,117.65/1,966,664.27 = 771,744.81/x
  3. Step 3: Cross multiply
    1,425,117.65x = 1,966,664.27 × 771,744.81
  4. Step 4: Simplify right side
    1,425,117.65x = 1,517,762,943,384.94
  5. Step 5: Solve for x
    x = 1,517,762,943,384.94/1,425,117.65
  6. Step 6: Final answer
    x = 1,065,008.87

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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.