Home / 648,019.20-973,065.60-490,425.60

Finding the Fourth Proportional to 648,019.20, 973,065.60 and 490,425.60

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Solution

The fourth proportional to 648,019.20, 973,065.60 and 490,425.60 is: 736,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,019.20 : 973,065.60 = 490,425.60 : x
  2. Step 2: Convert to fraction form
    648,019.20/973,065.60 = 490,425.60/x
  3. Step 3: Cross multiply
    648,019.20x = 973,065.60 × 490,425.60
  4. Step 4: Simplify right side
    648,019.20x = 477,216,280,719.36
  5. Step 5: Solve for x
    x = 477,216,280,719.36/648,019.20
  6. Step 6: Final answer
    x = 736,423.06

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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.