Home / 1,388,403.90-2,084,533.11-714,966.30

Finding the Fourth Proportional to 1,388,403.90, 2,084,533.11 and 714,966.30

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Solution

The fourth proportional to 1,388,403.90, 2,084,533.11 and 714,966.30 is: 1,073,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,403.90 : 2,084,533.11 = 714,966.30 : x
  2. Step 2: Convert to fraction form
    1,388,403.90/2,084,533.11 = 714,966.30/x
  3. Step 3: Cross multiply
    1,388,403.90x = 2,084,533.11 × 714,966.30
  4. Step 4: Simplify right side
    1,388,403.90x = 1,490,370,924,884.19
  5. Step 5: Solve for x
    x = 1,490,370,924,884.19/1,388,403.90
  6. Step 6: Final answer
    x = 1,073,441.90

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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.