Home / 648,918.81-973,378.22-424,467.95

Finding the Fourth Proportional to 648,918.81, 973,378.22 and 424,467.95

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Solution

The fourth proportional to 648,918.81, 973,378.22 and 424,467.95 is: 636,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,918.81 : 973,378.22 = 424,467.95 : x
  2. Step 2: Convert to fraction form
    648,918.81/973,378.22 = 424,467.95/x
  3. Step 3: Cross multiply
    648,918.81x = 973,378.22 × 424,467.95
  4. Step 4: Simplify right side
    648,918.81x = 413,167,850,628.82
  5. Step 5: Solve for x
    x = 413,167,850,628.82/648,918.81
  6. Step 6: Final answer
    x = 636,701.92

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Double scale
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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.