Home / 1,210,432.32-1,670,485.40-866,300.56

Finding the Fourth Proportional to 1,210,432.32, 1,670,485.40 and 866,300.56

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Solution

The fourth proportional to 1,210,432.32, 1,670,485.40 and 866,300.56 is: 1,195,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,432.32 : 1,670,485.40 = 866,300.56 : x
  2. Step 2: Convert to fraction form
    1,210,432.32/1,670,485.40 = 866,300.56/x
  3. Step 3: Cross multiply
    1,210,432.32x = 1,670,485.40 × 866,300.56
  4. Step 4: Simplify right side
    1,210,432.32x = 1,447,142,437,491.82
  5. Step 5: Solve for x
    x = 1,447,142,437,491.82/1,210,432.32
  6. Step 6: Final answer
    x = 1,195,558.33

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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.