Home / 1,248,445.16-1,871,880.42-687,873.32

Finding the Fourth Proportional to 1,248,445.16, 1,871,880.42 and 687,873.32

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Solution

The fourth proportional to 1,248,445.16, 1,871,880.42 and 687,873.32 is: 1,031,376.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,445.16 : 1,871,880.42 = 687,873.32 : x
  2. Step 2: Convert to fraction form
    1,248,445.16/1,871,880.42 = 687,873.32/x
  3. Step 3: Cross multiply
    1,248,445.16x = 1,871,880.42 × 687,873.32
  4. Step 4: Simplify right side
    1,248,445.16x = 1,287,616,599,148.39
  5. Step 5: Solve for x
    x = 1,287,616,599,148.39/1,248,445.16
  6. Step 6: Final answer
    x = 1,031,376.18

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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.