Home / 740,055.95-1,109,189.97-360,407.78

Finding the Fourth Proportional to 740,055.95, 1,109,189.97 and 360,407.78

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Solution

The fourth proportional to 740,055.95, 1,109,189.97 and 360,407.78 is: 540,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,055.95 : 1,109,189.97 = 360,407.78 : x
  2. Step 2: Convert to fraction form
    740,055.95/1,109,189.97 = 360,407.78/x
  3. Step 3: Cross multiply
    740,055.95x = 1,109,189.97 × 360,407.78
  4. Step 4: Simplify right side
    740,055.95x = 399,760,689,140.02
  5. Step 5: Solve for x
    x = 399,760,689,140.02/740,055.95
  6. Step 6: Final answer
    x = 540,176.31

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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.