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Finding the Fourth Proportional to 1,112,406, 1,535,327.64 and 635,478

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Solution

The fourth proportional to 1,112,406, 1,535,327.64 and 635,478 is: 877,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,406 : 1,535,327.64 = 635,478 : x
  2. Step 2: Convert to fraction form
    1,112,406/1,535,327.64 = 635,478/x
  3. Step 3: Cross multiply
    1,112,406x = 1,535,327.64 × 635,478
  4. Step 4: Simplify right side
    1,112,406x = 975,666,938,011.92
  5. Step 5: Solve for x
    x = 975,666,938,011.92/1,112,406
  6. Step 6: Final answer
    x = 877,078.10

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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.