Home / 804,501.20-1,206,751.80-425,275.40

Finding the Fourth Proportional to 804,501.20, 1,206,751.80 and 425,275.40

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Solution

The fourth proportional to 804,501.20, 1,206,751.80 and 425,275.40 is: 637,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,501.20 : 1,206,751.80 = 425,275.40 : x
  2. Step 2: Convert to fraction form
    804,501.20/1,206,751.80 = 425,275.40/x
  3. Step 3: Cross multiply
    804,501.20x = 1,206,751.80 × 425,275.40
  4. Step 4: Simplify right side
    804,501.20x = 513,201,854,445.72
  5. Step 5: Solve for x
    x = 513,201,854,445.72/804,501.20
  6. Step 6: Final answer
    x = 637,913.10

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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.