Home / 742,687.47-1,113,852.65-342,944.19

Finding the Fourth Proportional to 742,687.47, 1,113,852.65 and 342,944.19

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Solution

The fourth proportional to 742,687.47, 1,113,852.65 and 342,944.19 is: 514,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,687.47 : 1,113,852.65 = 342,944.19 : x
  2. Step 2: Convert to fraction form
    742,687.47/1,113,852.65 = 342,944.19/x
  3. Step 3: Cross multiply
    742,687.47x = 1,113,852.65 × 342,944.19
  4. Step 4: Simplify right side
    742,687.47x = 381,989,293,118.88
  5. Step 5: Solve for x
    x = 381,989,293,118.88/742,687.47
  6. Step 6: Final answer
    x = 514,333.83

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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.