Home / 987,915.64-1,480,298.82-632,637.40

Finding the Fourth Proportional to 987,915.64, 1,480,298.82 and 632,637.40

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Solution

The fourth proportional to 987,915.64, 1,480,298.82 and 632,637.40 is: 947,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,915.64 : 1,480,298.82 = 632,637.40 : x
  2. Step 2: Convert to fraction form
    987,915.64/1,480,298.82 = 632,637.40/x
  3. Step 3: Cross multiply
    987,915.64x = 1,480,298.82 × 632,637.40
  4. Step 4: Simplify right side
    987,915.64x = 936,492,396,707.87
  5. Step 5: Solve for x
    x = 936,492,396,707.87/987,915.64
  6. Step 6: Final answer
    x = 947,947.74

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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.