Home / 1,021,139.86-1,531,876.02-301,554.34

Finding the Fourth Proportional to 1,021,139.86, 1,531,876.02 and 301,554.34

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Solution

The fourth proportional to 1,021,139.86, 1,531,876.02 and 301,554.34 is: 452,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,139.86 : 1,531,876.02 = 301,554.34 : x
  2. Step 2: Convert to fraction form
    1,021,139.86/1,531,876.02 = 301,554.34/x
  3. Step 3: Cross multiply
    1,021,139.86x = 1,531,876.02 × 301,554.34
  4. Step 4: Simplify right side
    1,021,139.86x = 461,943,862,240.10
  5. Step 5: Solve for x
    x = 461,943,862,240.10/1,021,139.86
  6. Step 6: Final answer
    x = 452,380.60

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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.