Home / 917,975.60-1,266,905.04-555,598.88

Finding the Fourth Proportional to 917,975.60, 1,266,905.04 and 555,598.88

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Solution

The fourth proportional to 917,975.60, 1,266,905.04 and 555,598.88 is: 766,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,975.60 : 1,266,905.04 = 555,598.88 : x
  2. Step 2: Convert to fraction form
    917,975.60/1,266,905.04 = 555,598.88/x
  3. Step 3: Cross multiply
    917,975.60x = 1,266,905.04 × 555,598.88
  4. Step 4: Simplify right side
    917,975.60x = 703,891,021,290.36
  5. Step 5: Solve for x
    x = 703,891,021,290.36/917,975.60
  6. Step 6: Final answer
    x = 766,786.20

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1.5x scale

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.