Home / 742,046.40-1,113,361.20-292,690.80

Finding the Fourth Proportional to 742,046.40, 1,113,361.20 and 292,690.80

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Solution

The fourth proportional to 742,046.40, 1,113,361.20 and 292,690.80 is: 439,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,046.40 : 1,113,361.20 = 292,690.80 : x
  2. Step 2: Convert to fraction form
    742,046.40/1,113,361.20 = 292,690.80/x
  3. Step 3: Cross multiply
    742,046.40x = 1,113,361.20 × 292,690.80
  4. Step 4: Simplify right side
    742,046.40x = 325,870,580,316.96
  5. Step 5: Solve for x
    x = 325,870,580,316.96/742,046.40
  6. Step 6: Final answer
    x = 439,151.22

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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.