Home / 1,055,431.60-1,583,147.40-424,020.40

Finding the Fourth Proportional to 1,055,431.60, 1,583,147.40 and 424,020.40

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Solution

The fourth proportional to 1,055,431.60, 1,583,147.40 and 424,020.40 is: 636,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,431.60 : 1,583,147.40 = 424,020.40 : x
  2. Step 2: Convert to fraction form
    1,055,431.60/1,583,147.40 = 424,020.40/x
  3. Step 3: Cross multiply
    1,055,431.60x = 1,583,147.40 × 424,020.40
  4. Step 4: Simplify right side
    1,055,431.60x = 671,286,793,806.96
  5. Step 5: Solve for x
    x = 671,286,793,806.96/1,055,431.60
  6. Step 6: Final answer
    x = 636,030.60

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.