Home / 814,445.40-1,224,000.90-711,802.20

Finding the Fourth Proportional to 814,445.40, 1,224,000.90 and 711,802.20

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Solution

The fourth proportional to 814,445.40, 1,224,000.90 and 711,802.20 is: 1,069,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,445.40 : 1,224,000.90 = 711,802.20 : x
  2. Step 2: Convert to fraction form
    814,445.40/1,224,000.90 = 711,802.20/x
  3. Step 3: Cross multiply
    814,445.40x = 1,224,000.90 × 711,802.20
  4. Step 4: Simplify right side
    814,445.40x = 871,246,533,421.98
  5. Step 5: Solve for x
    x = 871,246,533,421.98/814,445.40
  6. Step 6: Final answer
    x = 1,069,742.10

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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.