Home / 714,002.40-1,070,347.20-308,941.68

Finding the Fourth Proportional to 714,002.40, 1,070,347.20 and 308,941.68

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Solution

The fourth proportional to 714,002.40, 1,070,347.20 and 308,941.68 is: 463,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,002.40 : 1,070,347.20 = 308,941.68 : x
  2. Step 2: Convert to fraction form
    714,002.40/1,070,347.20 = 308,941.68/x
  3. Step 3: Cross multiply
    714,002.40x = 1,070,347.20 × 308,941.68
  4. Step 4: Simplify right side
    714,002.40x = 330,674,862,151.30
  5. Step 5: Solve for x
    x = 330,674,862,151.30/714,002.40
  6. Step 6: Final answer
    x = 463,128.50

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Double scale
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Similar ratio
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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.