Home / 1,280,681.22-1,767,282.57-707,709

Finding the Fourth Proportional to 1,280,681.22, 1,767,282.57 and 707,709

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Solution

The fourth proportional to 1,280,681.22, 1,767,282.57 and 707,709 is: 976,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,681.22 : 1,767,282.57 = 707,709 : x
  2. Step 2: Convert to fraction form
    1,280,681.22/1,767,282.57 = 707,709/x
  3. Step 3: Cross multiply
    1,280,681.22x = 1,767,282.57 × 707,709
  4. Step 4: Simplify right side
    1,280,681.22x = 1,250,721,780,332.13
  5. Step 5: Solve for x
    x = 1,250,721,780,332.13/1,280,681.22
  6. Step 6: Final answer
    x = 976,606.64

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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.