Home / 742,007.12-1,113,202.57-434,518.78

Finding the Fourth Proportional to 742,007.12, 1,113,202.57 and 434,518.78

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Solution

The fourth proportional to 742,007.12, 1,113,202.57 and 434,518.78 is: 651,890.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,007.12 : 1,113,202.57 = 434,518.78 : x
  2. Step 2: Convert to fraction form
    742,007.12/1,113,202.57 = 434,518.78/x
  3. Step 3: Cross multiply
    742,007.12x = 1,113,202.57 × 434,518.78
  4. Step 4: Simplify right side
    742,007.12x = 483,707,414,870.66
  5. Step 5: Solve for x
    x = 483,707,414,870.66/742,007.12
  6. Step 6: Final answer
    x = 651,890.53

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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.