Home / 930,613.80-1,285,045.44-900,520.68

Finding the Fourth Proportional to 930,613.80, 1,285,045.44 and 900,520.68

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Solution

The fourth proportional to 930,613.80, 1,285,045.44 and 900,520.68 is: 1,243,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,613.80 : 1,285,045.44 = 900,520.68 : x
  2. Step 2: Convert to fraction form
    930,613.80/1,285,045.44 = 900,520.68/x
  3. Step 3: Cross multiply
    930,613.80x = 1,285,045.44 × 900,520.68
  4. Step 4: Simplify right side
    930,613.80x = 1,157,209,993,459.70
  5. Step 5: Solve for x
    x = 1,157,209,993,459.70/930,613.80
  6. Step 6: Final answer
    x = 1,243,491.12

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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.