Home / 828,008.70-1,242,013.05-618,056.70

Finding the Fourth Proportional to 828,008.70, 1,242,013.05 and 618,056.70

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Solution

The fourth proportional to 828,008.70, 1,242,013.05 and 618,056.70 is: 927,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,008.70 : 1,242,013.05 = 618,056.70 : x
  2. Step 2: Convert to fraction form
    828,008.70/1,242,013.05 = 618,056.70/x
  3. Step 3: Cross multiply
    828,008.70x = 1,242,013.05 × 618,056.70
  4. Step 4: Simplify right side
    828,008.70x = 767,634,487,039.94
  5. Step 5: Solve for x
    x = 767,634,487,039.94/828,008.70
  6. Step 6: Final answer
    x = 927,085.05

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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.