Home / 828,509.40-1,242,764.10-671,045.40

Finding the Fourth Proportional to 828,509.40, 1,242,764.10 and 671,045.40

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Solution

The fourth proportional to 828,509.40, 1,242,764.10 and 671,045.40 is: 1,006,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,509.40 : 1,242,764.10 = 671,045.40 : x
  2. Step 2: Convert to fraction form
    828,509.40/1,242,764.10 = 671,045.40/x
  3. Step 3: Cross multiply
    828,509.40x = 1,242,764.10 × 671,045.40
  4. Step 4: Simplify right side
    828,509.40x = 833,951,132,590.14
  5. Step 5: Solve for x
    x = 833,951,132,590.14/828,509.40
  6. Step 6: Final answer
    x = 1,006,568.10

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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.