Home / 816,000.20-1,224,000.30-730,291.40

Finding the Fourth Proportional to 816,000.20, 1,224,000.30 and 730,291.40

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Solution

The fourth proportional to 816,000.20, 1,224,000.30 and 730,291.40 is: 1,095,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,000.20 : 1,224,000.30 = 730,291.40 : x
  2. Step 2: Convert to fraction form
    816,000.20/1,224,000.30 = 730,291.40/x
  3. Step 3: Cross multiply
    816,000.20x = 1,224,000.30 × 730,291.40
  4. Step 4: Simplify right side
    816,000.20x = 893,876,892,687.42
  5. Step 5: Solve for x
    x = 893,876,892,687.42/816,000.20
  6. Step 6: Final answer
    x = 1,095,437.10

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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.