Home / 1,138,818.50-1,571,588.20-679,973.16

Finding the Fourth Proportional to 1,138,818.50, 1,571,588.20 and 679,973.16

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Solution

The fourth proportional to 1,138,818.50, 1,571,588.20 and 679,973.16 is: 938,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,818.50 : 1,571,588.20 = 679,973.16 : x
  2. Step 2: Convert to fraction form
    1,138,818.50/1,571,588.20 = 679,973.16/x
  3. Step 3: Cross multiply
    1,138,818.50x = 1,571,588.20 × 679,973.16
  4. Step 4: Simplify right side
    1,138,818.50x = 1,068,637,799,403.71
  5. Step 5: Solve for x
    x = 1,068,637,799,403.71/1,138,818.50
  6. Step 6: Final answer
    x = 938,374.12

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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.