Home / 1,146,134.40-1,718,596.80-387,715.20

Finding the Fourth Proportional to 1,146,134.40, 1,718,596.80 and 387,715.20

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Solution

The fourth proportional to 1,146,134.40, 1,718,596.80 and 387,715.20 is: 581,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,134.40 : 1,718,596.80 = 387,715.20 : x
  2. Step 2: Convert to fraction form
    1,146,134.40/1,718,596.80 = 387,715.20/x
  3. Step 3: Cross multiply
    1,146,134.40x = 1,718,596.80 × 387,715.20
  4. Step 4: Simplify right side
    1,146,134.40x = 666,326,102,031.36
  5. Step 5: Solve for x
    x = 666,326,102,031.36/1,146,134.40
  6. Step 6: Final answer
    x = 581,368.21

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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.