Home / 742,557.65-1,113,658.02-342,814.46

Finding the Fourth Proportional to 742,557.65, 1,113,658.02 and 342,814.46

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Solution

The fourth proportional to 742,557.65, 1,113,658.02 and 342,814.46 is: 514,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,557.65 : 1,113,658.02 = 342,814.46 : x
  2. Step 2: Convert to fraction form
    742,557.65/1,113,658.02 = 342,814.46/x
  3. Step 3: Cross multiply
    742,557.65x = 1,113,658.02 × 342,814.46
  4. Step 4: Simplify right side
    742,557.65x = 381,778,067,182.68
  5. Step 5: Solve for x
    x = 381,778,067,182.68/742,557.65
  6. Step 6: Final answer
    x = 514,139.30

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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.