Home / 1,239,036-1,710,470.34-830,988.60

Finding the Fourth Proportional to 1,239,036, 1,710,470.34 and 830,988.60

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Solution

The fourth proportional to 1,239,036, 1,710,470.34 and 830,988.60 is: 1,147,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,036 : 1,710,470.34 = 830,988.60 : x
  2. Step 2: Convert to fraction form
    1,239,036/1,710,470.34 = 830,988.60/x
  3. Step 3: Cross multiply
    1,239,036x = 1,710,470.34 × 830,988.60
  4. Step 4: Simplify right side
    1,239,036x = 1,421,381,353,178.12
  5. Step 5: Solve for x
    x = 1,421,381,353,178.12/1,239,036
  6. Step 6: Final answer
    x = 1,147,167.11

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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.