Home / 1,013,999.70-1,520,999.55-615,090.90

Finding the Fourth Proportional to 1,013,999.70, 1,520,999.55 and 615,090.90

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Solution

The fourth proportional to 1,013,999.70, 1,520,999.55 and 615,090.90 is: 922,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,999.70 : 1,520,999.55 = 615,090.90 : x
  2. Step 2: Convert to fraction form
    1,013,999.70/1,520,999.55 = 615,090.90/x
  3. Step 3: Cross multiply
    1,013,999.70x = 1,520,999.55 × 615,090.90
  4. Step 4: Simplify right side
    1,013,999.70x = 935,552,982,109.10
  5. Step 5: Solve for x
    x = 935,552,982,109.10/1,013,999.70
  6. Step 6: Final answer
    x = 922,636.35

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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.