Home / 1,013,047.80-1,519,571.70-915,070.20

Finding the Fourth Proportional to 1,013,047.80, 1,519,571.70 and 915,070.20

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Solution

The fourth proportional to 1,013,047.80, 1,519,571.70 and 915,070.20 is: 1,372,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,047.80 : 1,519,571.70 = 915,070.20 : x
  2. Step 2: Convert to fraction form
    1,013,047.80/1,519,571.70 = 915,070.20/x
  3. Step 3: Cross multiply
    1,013,047.80x = 1,519,571.70 × 915,070.20
  4. Step 4: Simplify right side
    1,013,047.80x = 1,390,514,779,433.34
  5. Step 5: Solve for x
    x = 1,390,514,779,433.34/1,013,047.80
  6. Step 6: Final answer
    x = 1,372,605.30

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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.