Home / 918,207.10-1,377,310.65-638,271.10

Finding the Fourth Proportional to 918,207.10, 1,377,310.65 and 638,271.10

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Solution

The fourth proportional to 918,207.10, 1,377,310.65 and 638,271.10 is: 957,406.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,207.10 : 1,377,310.65 = 638,271.10 : x
  2. Step 2: Convert to fraction form
    918,207.10/1,377,310.65 = 638,271.10/x
  3. Step 3: Cross multiply
    918,207.10x = 1,377,310.65 × 638,271.10
  4. Step 4: Simplify right side
    918,207.10x = 879,097,583,617.22
  5. Step 5: Solve for x
    x = 879,097,583,617.22/918,207.10
  6. Step 6: Final answer
    x = 957,406.65

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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.