Home / 714,649.74-1,071,968.13-315,290.85

Finding the Fourth Proportional to 714,649.74, 1,071,968.13 and 315,290.85

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Solution

The fourth proportional to 714,649.74, 1,071,968.13 and 315,290.85 is: 472,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,649.74 : 1,071,968.13 = 315,290.85 : x
  2. Step 2: Convert to fraction form
    714,649.74/1,071,968.13 = 315,290.85/x
  3. Step 3: Cross multiply
    714,649.74x = 1,071,968.13 × 315,290.85
  4. Step 4: Simplify right side
    714,649.74x = 337,981,742,880.61
  5. Step 5: Solve for x
    x = 337,981,742,880.61/714,649.74
  6. Step 6: Final answer
    x = 472,933.42

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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.