Home / 1,118,711.16-1,676,764.80-639,274.95

Finding the Fourth Proportional to 1,118,711.16, 1,676,764.80 and 639,274.95

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Solution

The fourth proportional to 1,118,711.16, 1,676,764.80 and 639,274.95 is: 958,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,711.16 : 1,676,764.80 = 639,274.95 : x
  2. Step 2: Convert to fraction form
    1,118,711.16/1,676,764.80 = 639,274.95/x
  3. Step 3: Cross multiply
    1,118,711.16x = 1,676,764.80 × 639,274.95
  4. Step 4: Simplify right side
    1,118,711.16x = 1,071,913,733,681.76
  5. Step 5: Solve for x
    x = 1,071,913,733,681.76/1,118,711.16
  6. Step 6: Final answer
    x = 958,168.45

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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.