Home / 742,068.60-1,113,540.30-490,077.60

Finding the Fourth Proportional to 742,068.60, 1,113,540.30 and 490,077.60

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Solution

The fourth proportional to 742,068.60, 1,113,540.30 and 490,077.60 is: 735,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,068.60 : 1,113,540.30 = 490,077.60 : x
  2. Step 2: Convert to fraction form
    742,068.60/1,113,540.30 = 490,077.60/x
  3. Step 3: Cross multiply
    742,068.60x = 1,113,540.30 × 490,077.60
  4. Step 4: Simplify right side
    742,068.60x = 545,721,157,727.28
  5. Step 5: Solve for x
    x = 545,721,157,727.28/742,068.60
  6. Step 6: Final answer
    x = 735,405.27

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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.