Home / 828,007.60-1,242,011.40-788,641.60

Finding the Fourth Proportional to 828,007.60, 1,242,011.40 and 788,641.60

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Solution

The fourth proportional to 828,007.60, 1,242,011.40 and 788,641.60 is: 1,182,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,007.60 : 1,242,011.40 = 788,641.60 : x
  2. Step 2: Convert to fraction form
    828,007.60/1,242,011.40 = 788,641.60/x
  3. Step 3: Cross multiply
    828,007.60x = 1,242,011.40 × 788,641.60
  4. Step 4: Simplify right side
    828,007.60x = 979,501,857,714.24
  5. Step 5: Solve for x
    x = 979,501,857,714.24/828,007.60
  6. Step 6: Final answer
    x = 1,182,962.40

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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.