Home / 830,306.34-1,145,835.45-490,806.18

Finding the Fourth Proportional to 830,306.34, 1,145,835.45 and 490,806.18

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Solution

The fourth proportional to 830,306.34, 1,145,835.45 and 490,806.18 is: 677,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,306.34 : 1,145,835.45 = 490,806.18 : x
  2. Step 2: Convert to fraction form
    830,306.34/1,145,835.45 = 490,806.18/x
  3. Step 3: Cross multiply
    830,306.34x = 1,145,835.45 × 490,806.18
  4. Step 4: Simplify right side
    830,306.34x = 562,383,120,123.08
  5. Step 5: Solve for x
    x = 562,383,120,123.08/830,306.34
  6. Step 6: Final answer
    x = 677,320.04

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Double scale
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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.