Home / 781,118.28-1,077,892.37-436,894.58

Finding the Fourth Proportional to 781,118.28, 1,077,892.37 and 436,894.58

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Solution

The fourth proportional to 781,118.28, 1,077,892.37 and 436,894.58 is: 602,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,118.28 : 1,077,892.37 = 436,894.58 : x
  2. Step 2: Convert to fraction form
    781,118.28/1,077,892.37 = 436,894.58/x
  3. Step 3: Cross multiply
    781,118.28x = 1,077,892.37 × 436,894.58
  4. Step 4: Simplify right side
    781,118.28x = 470,925,328,886.89
  5. Step 5: Solve for x
    x = 470,925,328,886.89/781,118.28
  6. Step 6: Final answer
    x = 602,886.07

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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.