Home / 820,001.64-1,131,600.42-462,303.08

Finding the Fourth Proportional to 820,001.64, 1,131,600.42 and 462,303.08

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Solution

The fourth proportional to 820,001.64, 1,131,600.42 and 462,303.08 is: 637,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,001.64 : 1,131,600.42 = 462,303.08 : x
  2. Step 2: Convert to fraction form
    820,001.64/1,131,600.42 = 462,303.08/x
  3. Step 3: Cross multiply
    820,001.64x = 1,131,600.42 × 462,303.08
  4. Step 4: Simplify right side
    820,001.64x = 523,142,359,495.29
  5. Step 5: Solve for x
    x = 523,142,359,495.29/820,001.64
  6. Step 6: Final answer
    x = 637,977.21

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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.