Home / 947,756.34-1,421,707.95-316,672.38

Finding the Fourth Proportional to 947,756.34, 1,421,707.95 and 316,672.38

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Solution

The fourth proportional to 947,756.34, 1,421,707.95 and 316,672.38 is: 475,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,756.34 : 1,421,707.95 = 316,672.38 : x
  2. Step 2: Convert to fraction form
    947,756.34/1,421,707.95 = 316,672.38/x
  3. Step 3: Cross multiply
    947,756.34x = 1,421,707.95 × 316,672.38
  4. Step 4: Simplify right side
    947,756.34x = 450,215,640,191.42
  5. Step 5: Solve for x
    x = 450,215,640,191.42/947,756.34
  6. Step 6: Final answer
    x = 475,033.11

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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.