Home / 1,087,543-1,631,661.20-456,287.32

Finding the Fourth Proportional to 1,087,543, 1,631,661.20 and 456,287.32

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Solution

The fourth proportional to 1,087,543, 1,631,661.20 and 456,287.32 is: 684,576.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,543 : 1,631,661.20 = 456,287.32 : x
  2. Step 2: Convert to fraction form
    1,087,543/1,631,661.20 = 456,287.32/x
  3. Step 3: Cross multiply
    1,087,543x = 1,631,661.20 × 456,287.32
  4. Step 4: Simplify right side
    1,087,543x = 744,506,316,095.98
  5. Step 5: Solve for x
    x = 744,506,316,095.98/1,087,543
  6. Step 6: Final answer
    x = 684,576.44

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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.