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Finding the Fourth Proportional to 648,671.70, 973,007.55 and 424,722.90

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Solution

The fourth proportional to 648,671.70, 973,007.55 and 424,722.90 is: 637,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,671.70 : 973,007.55 = 424,722.90 : x
  2. Step 2: Convert to fraction form
    648,671.70/973,007.55 = 424,722.90/x
  3. Step 3: Cross multiply
    648,671.70x = 973,007.55 × 424,722.90
  4. Step 4: Simplify right side
    648,671.70x = 413,258,588,357.90
  5. Step 5: Solve for x
    x = 413,258,588,357.90/648,671.70
  6. Step 6: Final answer
    x = 637,084.35

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Similar ratio
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1.5x scale

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.