Home / 970,657.70-1,339,113.06-644,124.69

Finding the Fourth Proportional to 970,657.70, 1,339,113.06 and 644,124.69

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Solution

The fourth proportional to 970,657.70, 1,339,113.06 and 644,124.69 is: 888,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,657.70 : 1,339,113.06 = 644,124.69 : x
  2. Step 2: Convert to fraction form
    970,657.70/1,339,113.06 = 644,124.69/x
  3. Step 3: Cross multiply
    970,657.70x = 1,339,113.06 × 644,124.69
  4. Step 4: Simplify right side
    970,657.70x = 862,555,784,647.45
  5. Step 5: Solve for x
    x = 862,555,784,647.45/970,657.70
  6. Step 6: Final answer
    x = 888,630.24

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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.