Home / 1,397,423.02-1,928,337.55-785,478.55

Finding the Fourth Proportional to 1,397,423.02, 1,928,337.55 and 785,478.55

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Solution

The fourth proportional to 1,397,423.02, 1,928,337.55 and 785,478.55 is: 1,083,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,423.02 : 1,928,337.55 = 785,478.55 : x
  2. Step 2: Convert to fraction form
    1,397,423.02/1,928,337.55 = 785,478.55/x
  3. Step 3: Cross multiply
    1,397,423.02x = 1,928,337.55 × 785,478.55
  4. Step 4: Simplify right side
    1,397,423.02x = 1,514,667,782,684.55
  5. Step 5: Solve for x
    x = 1,514,667,782,684.55/1,397,423.02
  6. Step 6: Final answer
    x = 1,083,900.70

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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.