Home / 811,941.95-1,120,355.07-467,710.64

Finding the Fourth Proportional to 811,941.95, 1,120,355.07 and 467,710.64

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Solution

The fourth proportional to 811,941.95, 1,120,355.07 and 467,710.64 is: 645,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,941.95 : 1,120,355.07 = 467,710.64 : x
  2. Step 2: Convert to fraction form
    811,941.95/1,120,355.07 = 467,710.64/x
  3. Step 3: Cross multiply
    811,941.95x = 1,120,355.07 × 467,710.64
  4. Step 4: Simplify right side
    811,941.95x = 524,001,985,063.03
  5. Step 5: Solve for x
    x = 524,001,985,063.03/811,941.95
  6. Step 6: Final answer
    x = 645,368.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.