Home / 1,351,406-1,864,935.28-731,209.28

Finding the Fourth Proportional to 1,351,406, 1,864,935.28 and 731,209.28

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Solution

The fourth proportional to 1,351,406, 1,864,935.28 and 731,209.28 is: 1,009,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,406 : 1,864,935.28 = 731,209.28 : x
  2. Step 2: Convert to fraction form
    1,351,406/1,864,935.28 = 731,209.28/x
  3. Step 3: Cross multiply
    1,351,406x = 1,864,935.28 × 731,209.28
  4. Step 4: Simplify right side
    1,351,406x = 1,363,657,983,335.40
  5. Step 5: Solve for x
    x = 1,363,657,983,335.40/1,351,406
  6. Step 6: Final answer
    x = 1,009,066.10

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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.