Home / 1,502,123.30-2,072,916.60-813,779.36

Finding the Fourth Proportional to 1,502,123.30, 2,072,916.60 and 813,779.36

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Solution

The fourth proportional to 1,502,123.30, 2,072,916.60 and 813,779.36 is: 1,123,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,123.30 : 2,072,916.60 = 813,779.36 : x
  2. Step 2: Convert to fraction form
    1,502,123.30/2,072,916.60 = 813,779.36/x
  3. Step 3: Cross multiply
    1,502,123.30x = 2,072,916.60 × 813,779.36
  4. Step 4: Simplify right side
    1,502,123.30x = 1,686,896,744,081.38
  5. Step 5: Solve for x
    x = 1,686,896,744,081.38/1,502,123.30
  6. Step 6: Final answer
    x = 1,123,008.17

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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.