Home / 751,802.49-1,128,666.02-645,864.21

Finding the Fourth Proportional to 751,802.49, 1,128,666.02 and 645,864.21

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Solution

The fourth proportional to 751,802.49, 1,128,666.02 and 645,864.21 is: 969,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,802.49 : 1,128,666.02 = 645,864.21 : x
  2. Step 2: Convert to fraction form
    751,802.49/1,128,666.02 = 645,864.21/x
  3. Step 3: Cross multiply
    751,802.49x = 1,128,666.02 × 645,864.21
  4. Step 4: Simplify right side
    751,802.49x = 728,964,984,131.82
  5. Step 5: Solve for x
    x = 728,964,984,131.82/751,802.49
  6. Step 6: Final answer
    x = 969,623.00

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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.