Home / 672,341.40-1,007,129.70-462,216.60

Finding the Fourth Proportional to 672,341.40, 1,007,129.70 and 462,216.60

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Solution

The fourth proportional to 672,341.40, 1,007,129.70 and 462,216.60 is: 692,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,341.40 : 1,007,129.70 = 462,216.60 : x
  2. Step 2: Convert to fraction form
    672,341.40/1,007,129.70 = 462,216.60/x
  3. Step 3: Cross multiply
    672,341.40x = 1,007,129.70 × 462,216.60
  4. Step 4: Simplify right side
    672,341.40x = 465,512,065,693.02
  5. Step 5: Solve for x
    x = 465,512,065,693.02/672,341.40
  6. Step 6: Final answer
    x = 692,374.54

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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.