Home / 778,119.02-1,167,280.60-304,742.86

Finding the Fourth Proportional to 778,119.02, 1,167,280.60 and 304,742.86

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Solution

The fourth proportional to 778,119.02, 1,167,280.60 and 304,742.86 is: 457,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,119.02 : 1,167,280.60 = 304,742.86 : x
  2. Step 2: Convert to fraction form
    778,119.02/1,167,280.60 = 304,742.86/x
  3. Step 3: Cross multiply
    778,119.02x = 1,167,280.60 × 304,742.86
  4. Step 4: Simplify right side
    778,119.02x = 355,720,428,466.52
  5. Step 5: Solve for x
    x = 355,720,428,466.52/778,119.02
  6. Step 6: Final answer
    x = 457,154.26

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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.