Home / 1,138,312.02-1,570,808.90-628,981.59

Finding the Fourth Proportional to 1,138,312.02, 1,570,808.90 and 628,981.59

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Solution

The fourth proportional to 1,138,312.02, 1,570,808.90 and 628,981.59 is: 867,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,312.02 : 1,570,808.90 = 628,981.59 : x
  2. Step 2: Convert to fraction form
    1,138,312.02/1,570,808.90 = 628,981.59/x
  3. Step 3: Cross multiply
    1,138,312.02x = 1,570,808.90 × 628,981.59
  4. Step 4: Simplify right side
    1,138,312.02x = 988,009,876,363.24
  5. Step 5: Solve for x
    x = 988,009,876,363.24/1,138,312.02
  6. Step 6: Final answer
    x = 867,960.51

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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.