Home / 1,388,590.41-1,915,483.10-807,748.19

Finding the Fourth Proportional to 1,388,590.41, 1,915,483.10 and 807,748.19

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Solution

The fourth proportional to 1,388,590.41, 1,915,483.10 and 807,748.19 is: 1,114,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,590.41 : 1,915,483.10 = 807,748.19 : x
  2. Step 2: Convert to fraction form
    1,388,590.41/1,915,483.10 = 807,748.19/x
  3. Step 3: Cross multiply
    1,388,590.41x = 1,915,483.10 × 807,748.19
  4. Step 4: Simplify right side
    1,388,590.41x = 1,547,227,993,384.43
  5. Step 5: Solve for x
    x = 1,547,227,993,384.43/1,388,590.41
  6. Step 6: Final answer
    x = 1,114,243.61

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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.