Home / 1,315,178.75-1,814,946.68-711,566.75

Finding the Fourth Proportional to 1,315,178.75, 1,814,946.68 and 711,566.75

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Solution

The fourth proportional to 1,315,178.75, 1,814,946.68 and 711,566.75 is: 981,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,178.75 : 1,814,946.68 = 711,566.75 : x
  2. Step 2: Convert to fraction form
    1,315,178.75/1,814,946.68 = 711,566.75/x
  3. Step 3: Cross multiply
    1,315,178.75x = 1,814,946.68 × 711,566.75
  4. Step 4: Simplify right side
    1,315,178.75x = 1,291,455,710,510.89
  5. Step 5: Solve for x
    x = 1,291,455,710,510.89/1,315,178.75
  6. Step 6: Final answer
    x = 981,962.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.