Home / 918,981.50-1,268,097.40-511,017.46

Finding the Fourth Proportional to 918,981.50, 1,268,097.40 and 511,017.46

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Solution

The fourth proportional to 918,981.50, 1,268,097.40 and 511,017.46 is: 705,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,981.50 : 1,268,097.40 = 511,017.46 : x
  2. Step 2: Convert to fraction form
    918,981.50/1,268,097.40 = 511,017.46/x
  3. Step 3: Cross multiply
    918,981.50x = 1,268,097.40 × 511,017.46
  4. Step 4: Simplify right side
    918,981.50x = 648,019,908,411.90
  5. Step 5: Solve for x
    x = 648,019,908,411.90/918,981.50
  6. Step 6: Final answer
    x = 705,150.11

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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.