Home / 927,064.38-1,390,409.30-645,317.72

Finding the Fourth Proportional to 927,064.38, 1,390,409.30 and 645,317.72

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Solution

The fourth proportional to 927,064.38, 1,390,409.30 and 645,317.72 is: 967,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,064.38 : 1,390,409.30 = 645,317.72 : x
  2. Step 2: Convert to fraction form
    927,064.38/1,390,409.30 = 645,317.72/x
  3. Step 3: Cross multiply
    927,064.38x = 1,390,409.30 × 645,317.72
  4. Step 4: Simplify right side
    927,064.38x = 897,255,759,342.80
  5. Step 5: Solve for x
    x = 897,255,759,342.80/927,064.38
  6. Step 6: Final answer
    x = 967,846.22

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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.