Home / 555,078.02-766,026.32-340,176.65

Finding the Fourth Proportional to 555,078.02, 766,026.32 and 340,176.65

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Solution

The fourth proportional to 555,078.02, 766,026.32 and 340,176.65 is: 469,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,078.02 : 766,026.32 = 340,176.65 : x
  2. Step 2: Convert to fraction form
    555,078.02/766,026.32 = 340,176.65/x
  3. Step 3: Cross multiply
    555,078.02x = 766,026.32 × 340,176.65
  4. Step 4: Simplify right side
    555,078.02x = 260,584,261,818.41
  5. Step 5: Solve for x
    x = 260,584,261,818.41/555,078.02
  6. Step 6: Final answer
    x = 469,455.20

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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.