Home / 742,620.60-1,114,368.30-490,629.60

Finding the Fourth Proportional to 742,620.60, 1,114,368.30 and 490,629.60

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Solution

The fourth proportional to 742,620.60, 1,114,368.30 and 490,629.60 is: 736,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,620.60 : 1,114,368.30 = 490,629.60 : x
  2. Step 2: Convert to fraction form
    742,620.60/1,114,368.30 = 490,629.60/x
  3. Step 3: Cross multiply
    742,620.60x = 1,114,368.30 × 490,629.60
  4. Step 4: Simplify right side
    742,620.60x = 546,742,073,281.68
  5. Step 5: Solve for x
    x = 546,742,073,281.68/742,620.60
  6. Step 6: Final answer
    x = 736,233.38

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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.