Home / 817,089.90-1,226,412.45-698,894.70

Finding the Fourth Proportional to 817,089.90, 1,226,412.45 and 698,894.70

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Solution

The fourth proportional to 817,089.90, 1,226,412.45 and 698,894.70 is: 1,049,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,089.90 : 1,226,412.45 = 698,894.70 : x
  2. Step 2: Convert to fraction form
    817,089.90/1,226,412.45 = 698,894.70/x
  3. Step 3: Cross multiply
    817,089.90x = 1,226,412.45 × 698,894.70
  4. Step 4: Simplify right side
    817,089.90x = 857,133,161,319.02
  5. Step 5: Solve for x
    x = 857,133,161,319.02/817,089.90
  6. Step 6: Final answer
    x = 1,049,007.17

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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.