Home / 1,072,900.50-1,480,549.77-643,097.22

Finding the Fourth Proportional to 1,072,900.50, 1,480,549.77 and 643,097.22

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Solution

The fourth proportional to 1,072,900.50, 1,480,549.77 and 643,097.22 is: 887,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,900.50 : 1,480,549.77 = 643,097.22 : x
  2. Step 2: Convert to fraction form
    1,072,900.50/1,480,549.77 = 643,097.22/x
  3. Step 3: Cross multiply
    1,072,900.50x = 1,480,549.77 × 643,097.22
  4. Step 4: Simplify right side
    1,072,900.50x = 952,137,441,158.64
  5. Step 5: Solve for x
    x = 952,137,441,158.64/1,072,900.50
  6. Step 6: Final answer
    x = 887,442.44

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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.