Home / 861,421.06-1,292,316.20-262,430.47

Finding the Fourth Proportional to 861,421.06, 1,292,316.20 and 262,430.47

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Solution

The fourth proportional to 861,421.06, 1,292,316.20 and 262,430.47 is: 393,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,421.06 : 1,292,316.20 = 262,430.47 : x
  2. Step 2: Convert to fraction form
    861,421.06/1,292,316.20 = 262,430.47/x
  3. Step 3: Cross multiply
    861,421.06x = 1,292,316.20 × 262,430.47
  4. Step 4: Simplify right side
    861,421.06x = 339,143,146,442.46
  5. Step 5: Solve for x
    x = 339,143,146,442.46/861,421.06
  6. Step 6: Final answer
    x = 393,701.94

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1.5x scale

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.