Home / 739,223.40-1,108,835.10-318,973.80

Finding the Fourth Proportional to 739,223.40, 1,108,835.10 and 318,973.80

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Solution

The fourth proportional to 739,223.40, 1,108,835.10 and 318,973.80 is: 478,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,223.40 : 1,108,835.10 = 318,973.80 : x
  2. Step 2: Convert to fraction form
    739,223.40/1,108,835.10 = 318,973.80/x
  3. Step 3: Cross multiply
    739,223.40x = 1,108,835.10 × 318,973.80
  4. Step 4: Simplify right side
    739,223.40x = 353,689,345,420.38
  5. Step 5: Solve for x
    x = 353,689,345,420.38/739,223.40
  6. Step 6: Final answer
    x = 478,460.70

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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.