Home / 1,318,876.16-1,820,146.80-738,157.36

Finding the Fourth Proportional to 1,318,876.16, 1,820,146.80 and 738,157.36

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Solution

The fourth proportional to 1,318,876.16, 1,820,146.80 and 738,157.36 is: 1,018,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,876.16 : 1,820,146.80 = 738,157.36 : x
  2. Step 2: Convert to fraction form
    1,318,876.16/1,820,146.80 = 738,157.36/x
  3. Step 3: Cross multiply
    1,318,876.16x = 1,820,146.80 × 738,157.36
  4. Step 4: Simplify right side
    1,318,876.16x = 1,343,554,756,700.45
  5. Step 5: Solve for x
    x = 1,343,554,756,700.45/1,318,876.16
  6. Step 6: Final answer
    x = 1,018,711.84

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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.