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Finding the Fourth Proportional to 618,009.80, 927,014.70 and 607,512.20

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Solution

The fourth proportional to 618,009.80, 927,014.70 and 607,512.20 is: 911,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,009.80 : 927,014.70 = 607,512.20 : x
  2. Step 2: Convert to fraction form
    618,009.80/927,014.70 = 607,512.20/x
  3. Step 3: Cross multiply
    618,009.80x = 927,014.70 × 607,512.20
  4. Step 4: Simplify right side
    618,009.80x = 563,172,739,829.34
  5. Step 5: Solve for x
    x = 563,172,739,829.34/618,009.80
  6. Step 6: Final answer
    x = 911,268.30

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1.5x scale

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.