Home / 1,290,551.52-1,781,102.88-739,319.52

Finding the Fourth Proportional to 1,290,551.52, 1,781,102.88 and 739,319.52

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Solution

The fourth proportional to 1,290,551.52, 1,781,102.88 and 739,319.52 is: 1,020,342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,551.52 : 1,781,102.88 = 739,319.52 : x
  2. Step 2: Convert to fraction form
    1,290,551.52/1,781,102.88 = 739,319.52/x
  3. Step 3: Cross multiply
    1,290,551.52x = 1,781,102.88 × 739,319.52
  4. Step 4: Simplify right side
    1,290,551.52x = 1,316,804,126,312.22
  5. Step 5: Solve for x
    x = 1,316,804,126,312.22/1,290,551.52
  6. Step 6: Final answer
    x = 1,020,342.16

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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.