Home / 1,280,955.51-1,767,655.04-707,980.95

Finding the Fourth Proportional to 1,280,955.51, 1,767,655.04 and 707,980.95

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Solution

The fourth proportional to 1,280,955.51, 1,767,655.04 and 707,980.95 is: 976,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,955.51 : 1,767,655.04 = 707,980.95 : x
  2. Step 2: Convert to fraction form
    1,280,955.51/1,767,655.04 = 707,980.95/x
  3. Step 3: Cross multiply
    1,280,955.51x = 1,767,655.04 × 707,980.95
  4. Step 4: Simplify right side
    1,280,955.51x = 1,251,466,090,951.58
  5. Step 5: Solve for x
    x = 1,251,466,090,951.58/1,280,955.51
  6. Step 6: Final answer
    x = 976,978.58

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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.