Home / 912,896.51-1,369,469.36-380,292.95

Finding the Fourth Proportional to 912,896.51, 1,369,469.36 and 380,292.95

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Solution

The fourth proportional to 912,896.51, 1,369,469.36 and 380,292.95 is: 570,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,896.51 : 1,369,469.36 = 380,292.95 : x
  2. Step 2: Convert to fraction form
    912,896.51/1,369,469.36 = 380,292.95/x
  3. Step 3: Cross multiply
    912,896.51x = 1,369,469.36 × 380,292.95
  4. Step 4: Simplify right side
    912,896.51x = 520,799,547,223.42
  5. Step 5: Solve for x
    x = 520,799,547,223.42/912,896.51
  6. Step 6: Final answer
    x = 570,491.34

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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.