Home / 742,779.11-1,114,328.59-230,433.86

Finding the Fourth Proportional to 742,779.11, 1,114,328.59 and 230,433.86

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Solution

The fourth proportional to 742,779.11, 1,114,328.59 and 230,433.86 is: 345,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,779.11 : 1,114,328.59 = 230,433.86 : x
  2. Step 2: Convert to fraction form
    742,779.11/1,114,328.59 = 230,433.86/x
  3. Step 3: Cross multiply
    742,779.11x = 1,114,328.59 × 230,433.86
  4. Step 4: Simplify right side
    742,779.11x = 256,779,040,511.79
  5. Step 5: Solve for x
    x = 256,779,040,511.79/742,779.11
  6. Step 6: Final answer
    x = 345,700.41

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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.