Home / 1,531,073.67-2,112,312.51-1,528,711.71

Finding the Fourth Proportional to 1,531,073.67, 2,112,312.51 and 1,528,711.71

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Solution

The fourth proportional to 1,531,073.67, 2,112,312.51 and 1,528,711.71 is: 2,109,053.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,073.67 : 2,112,312.51 = 1,528,711.71 : x
  2. Step 2: Convert to fraction form
    1,531,073.67/2,112,312.51 = 1,528,711.71/x
  3. Step 3: Cross multiply
    1,531,073.67x = 2,112,312.51 × 1,528,711.71
  4. Step 4: Simplify right side
    1,531,073.67x = 3,229,116,869,216.49
  5. Step 5: Solve for x
    x = 3,229,116,869,216.49/1,531,073.67
  6. Step 6: Final answer
    x = 2,109,053.88

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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.