Home / 742,077.20-1,113,115.80-368,829.20

Finding the Fourth Proportional to 742,077.20, 1,113,115.80 and 368,829.20

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Solution

The fourth proportional to 742,077.20, 1,113,115.80 and 368,829.20 is: 553,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,077.20 : 1,113,115.80 = 368,829.20 : x
  2. Step 2: Convert to fraction form
    742,077.20/1,113,115.80 = 368,829.20/x
  3. Step 3: Cross multiply
    742,077.20x = 1,113,115.80 × 368,829.20
  4. Step 4: Simplify right side
    742,077.20x = 410,549,610,021.36
  5. Step 5: Solve for x
    x = 410,549,610,021.36/742,077.20
  6. Step 6: Final answer
    x = 553,243.80

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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.