Home / 1,140,215.94-1,710,780.75-430,445.34

Finding the Fourth Proportional to 1,140,215.94, 1,710,780.75 and 430,445.34

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Solution

The fourth proportional to 1,140,215.94, 1,710,780.75 and 430,445.34 is: 645,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,215.94 : 1,710,780.75 = 430,445.34 : x
  2. Step 2: Convert to fraction form
    1,140,215.94/1,710,780.75 = 430,445.34/x
  3. Step 3: Cross multiply
    1,140,215.94x = 1,710,780.75 × 430,445.34
  4. Step 4: Simplify right side
    1,140,215.94x = 736,397,601,599.21
  5. Step 5: Solve for x
    x = 736,397,601,599.21/1,140,215.94
  6. Step 6: Final answer
    x = 645,840.47

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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.