Home / 987,900.64-1,480,276.32-632,622.40

Finding the Fourth Proportional to 987,900.64, 1,480,276.32 and 632,622.40

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Solution

The fourth proportional to 987,900.64, 1,480,276.32 and 632,622.40 is: 947,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,900.64 : 1,480,276.32 = 632,622.40 : x
  2. Step 2: Convert to fraction form
    987,900.64/1,480,276.32 = 632,622.40/x
  3. Step 3: Cross multiply
    987,900.64x = 1,480,276.32 × 632,622.40
  4. Step 4: Simplify right side
    987,900.64x = 936,455,958,221.57
  5. Step 5: Solve for x
    x = 936,455,958,221.57/987,900.64
  6. Step 6: Final answer
    x = 947,925.25

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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.