Home / 648,025.80-972,038.70-571,918.20

Finding the Fourth Proportional to 648,025.80, 972,038.70 and 571,918.20

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Solution

The fourth proportional to 648,025.80, 972,038.70 and 571,918.20 is: 857,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,025.80 : 972,038.70 = 571,918.20 : x
  2. Step 2: Convert to fraction form
    648,025.80/972,038.70 = 571,918.20/x
  3. Step 3: Cross multiply
    648,025.80x = 972,038.70 × 571,918.20
  4. Step 4: Simplify right side
    648,025.80x = 555,926,623,634.34
  5. Step 5: Solve for x
    x = 555,926,623,634.34/648,025.80
  6. Step 6: Final answer
    x = 857,877.30

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Similar ratio
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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.