Home / 1,426,275.60-1,968,275.72-781,681.92

Finding the Fourth Proportional to 1,426,275.60, 1,968,275.72 and 781,681.92

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Solution

The fourth proportional to 1,426,275.60, 1,968,275.72 and 781,681.92 is: 1,078,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,275.60 : 1,968,275.72 = 781,681.92 : x
  2. Step 2: Convert to fraction form
    1,426,275.60/1,968,275.72 = 781,681.92/x
  3. Step 3: Cross multiply
    1,426,275.60x = 1,968,275.72 × 781,681.92
  4. Step 4: Simplify right side
    1,426,275.60x = 1,538,565,543,898.98
  5. Step 5: Solve for x
    x = 1,538,565,543,898.98/1,426,275.60
  6. Step 6: Final answer
    x = 1,078,729.49

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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.