Home / 648,022.20-973,070.10-490,428.60

Finding the Fourth Proportional to 648,022.20, 973,070.10 and 490,428.60

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Solution

The fourth proportional to 648,022.20, 973,070.10 and 490,428.60 is: 736,427.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,022.20 : 973,070.10 = 490,428.60 : x
  2. Step 2: Convert to fraction form
    648,022.20/973,070.10 = 490,428.60/x
  3. Step 3: Cross multiply
    648,022.20x = 973,070.10 × 490,428.60
  4. Step 4: Simplify right side
    648,022.20x = 477,221,406,844.86
  5. Step 5: Solve for x
    x = 477,221,406,844.86/648,022.20
  6. Step 6: Final answer
    x = 736,427.56

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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.