Home / 742,000.50-1,023,960.69-419,703.66

Finding the Fourth Proportional to 742,000.50, 1,023,960.69 and 419,703.66

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Solution

The fourth proportional to 742,000.50, 1,023,960.69 and 419,703.66 is: 579,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,000.50 : 1,023,960.69 = 419,703.66 : x
  2. Step 2: Convert to fraction form
    742,000.50/1,023,960.69 = 419,703.66/x
  3. Step 3: Cross multiply
    742,000.50x = 1,023,960.69 × 419,703.66
  4. Step 4: Simplify right side
    742,000.50x = 429,760,049,289.13
  5. Step 5: Solve for x
    x = 429,760,049,289.13/742,000.50
  6. Step 6: Final answer
    x = 579,191.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.