Home / 1,318,788.81-1,820,026.30-738,070.12

Finding the Fourth Proportional to 1,318,788.81, 1,820,026.30 and 738,070.12

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Solution

The fourth proportional to 1,318,788.81, 1,820,026.30 and 738,070.12 is: 1,018,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,788.81 : 1,820,026.30 = 738,070.12 : x
  2. Step 2: Convert to fraction form
    1,318,788.81/1,820,026.30 = 738,070.12/x
  3. Step 3: Cross multiply
    1,318,788.81x = 1,820,026.30 × 738,070.12
  4. Step 4: Simplify right side
    1,318,788.81x = 1,343,307,029,644.16
  5. Step 5: Solve for x
    x = 1,343,307,029,644.16/1,318,788.81
  6. Step 6: Final answer
    x = 1,018,591.47

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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.