Home / 739,728.06-1,020,921.75-549,285.18

Finding the Fourth Proportional to 739,728.06, 1,020,921.75 and 549,285.18

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Solution

The fourth proportional to 739,728.06, 1,020,921.75 and 549,285.18 is: 758,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,728.06 : 1,020,921.75 = 549,285.18 : x
  2. Step 2: Convert to fraction form
    739,728.06/1,020,921.75 = 549,285.18/x
  3. Step 3: Cross multiply
    739,728.06x = 1,020,921.75 × 549,285.18
  4. Step 4: Simplify right side
    739,728.06x = 560,777,187,214.67
  5. Step 5: Solve for x
    x = 560,777,187,214.67/739,728.06
  6. Step 6: Final answer
    x = 758,085.60

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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.