Home / 857,260.10-1,285,890.15-778,528.10

Finding the Fourth Proportional to 857,260.10, 1,285,890.15 and 778,528.10

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Solution

The fourth proportional to 857,260.10, 1,285,890.15 and 778,528.10 is: 1,167,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,260.10 : 1,285,890.15 = 778,528.10 : x
  2. Step 2: Convert to fraction form
    857,260.10/1,285,890.15 = 778,528.10/x
  3. Step 3: Cross multiply
    857,260.10x = 1,285,890.15 × 778,528.10
  4. Step 4: Simplify right side
    857,260.10x = 1,001,101,615,288.21
  5. Step 5: Solve for x
    x = 1,001,101,615,288.21/857,260.10
  6. Step 6: Final answer
    x = 1,167,792.15

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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.