Home / 766,070.06-1,056,042.50-490,387.33

Finding the Fourth Proportional to 766,070.06, 1,056,042.50 and 490,387.33

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Solution

The fourth proportional to 766,070.06, 1,056,042.50 and 490,387.33 is: 676,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,070.06 : 1,056,042.50 = 490,387.33 : x
  2. Step 2: Convert to fraction form
    766,070.06/1,056,042.50 = 490,387.33/x
  3. Step 3: Cross multiply
    766,070.06x = 1,056,042.50 × 490,387.33
  4. Step 4: Simplify right side
    766,070.06x = 517,869,860,809.64
  5. Step 5: Solve for x
    x = 517,869,860,809.64/766,070.06
  6. Step 6: Final answer
    x = 676,008.49

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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.