Home / 1,868,478.29-2,578,500.03-1,009,038.49

Finding the Fourth Proportional to 1,868,478.29, 2,578,500.03 and 1,009,038.49

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Solution

The fourth proportional to 1,868,478.29, 2,578,500.03 and 1,009,038.49 is: 1,392,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,478.29 : 2,578,500.03 = 1,009,038.49 : x
  2. Step 2: Convert to fraction form
    1,868,478.29/2,578,500.03 = 1,009,038.49/x
  3. Step 3: Cross multiply
    1,868,478.29x = 2,578,500.03 × 1,009,038.49
  4. Step 4: Simplify right side
    1,868,478.29x = 2,601,805,776,736.15
  5. Step 5: Solve for x
    x = 2,601,805,776,736.15/1,868,478.29
  6. Step 6: Final answer
    x = 1,392,473.11

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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.