Home / 750,621.92-1,035,601.02-428,100.08

Finding the Fourth Proportional to 750,621.92, 1,035,601.02 and 428,100.08

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Solution

The fourth proportional to 750,621.92, 1,035,601.02 and 428,100.08 is: 590,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,621.92 : 1,035,601.02 = 428,100.08 : x
  2. Step 2: Convert to fraction form
    750,621.92/1,035,601.02 = 428,100.08/x
  3. Step 3: Cross multiply
    750,621.92x = 1,035,601.02 × 428,100.08
  4. Step 4: Simplify right side
    750,621.92x = 443,340,879,510.08
  5. Step 5: Solve for x
    x = 443,340,879,510.08/750,621.92
  6. Step 6: Final answer
    x = 590,631.41

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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.