Home / 692,764.16-956,033.28-420,769.68

Finding the Fourth Proportional to 692,764.16, 956,033.28 and 420,769.68

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Solution

The fourth proportional to 692,764.16, 956,033.28 and 420,769.68 is: 580,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,764.16 : 956,033.28 = 420,769.68 : x
  2. Step 2: Convert to fraction form
    692,764.16/956,033.28 = 420,769.68/x
  3. Step 3: Cross multiply
    692,764.16x = 956,033.28 × 420,769.68
  4. Step 4: Simplify right side
    692,764.16x = 402,269,817,294.95
  5. Step 5: Solve for x
    x = 402,269,817,294.95/692,764.16
  6. Step 6: Final answer
    x = 580,673.54

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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.