Home / 1,020,432.86-1,408,162-561,504.51

Finding the Fourth Proportional to 1,020,432.86, 1,408,162 and 561,504.51

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Solution

The fourth proportional to 1,020,432.86, 1,408,162 and 561,504.51 is: 774,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,432.86 : 1,408,162 = 561,504.51 : x
  2. Step 2: Convert to fraction form
    1,020,432.86/1,408,162 = 561,504.51/x
  3. Step 3: Cross multiply
    1,020,432.86x = 1,408,162 × 561,504.51
  4. Step 4: Simplify right side
    1,020,432.86x = 790,689,313,810.62
  5. Step 5: Solve for x
    x = 790,689,313,810.62/1,020,432.86
  6. Step 6: Final answer
    x = 774,856.77

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1.5x scale

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.