Home / 729,000.90-1,018,239.30-729,000.90

Finding the Fourth Proportional to 729,000.90, 1,018,239.30 and 729,000.90

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Solution

The fourth proportional to 729,000.90, 1,018,239.30 and 729,000.90 is: 1,018,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,000.90 : 1,018,239.30 = 729,000.90 : x
  2. Step 2: Convert to fraction form
    729,000.90/1,018,239.30 = 729,000.90/x
  3. Step 3: Cross multiply
    729,000.90x = 1,018,239.30 × 729,000.90
  4. Step 4: Simplify right side
    729,000.90x = 742,297,366,115.37
  5. Step 5: Solve for x
    x = 742,297,366,115.37/729,000.90
  6. Step 6: Final answer
    x = 1,018,239.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.