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Finding the Fourth Proportional to 585,655.86, 808,291.77 and 370,815.86

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Solution

The fourth proportional to 585,655.86, 808,291.77 and 370,815.86 is: 511,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,655.86 : 808,291.77 = 370,815.86 : x
  2. Step 2: Convert to fraction form
    585,655.86/808,291.77 = 370,815.86/x
  3. Step 3: Cross multiply
    585,655.86x = 808,291.77 × 370,815.86
  4. Step 4: Simplify right side
    585,655.86x = 299,727,407,823.47
  5. Step 5: Solve for x
    x = 299,727,407,823.47/585,655.86
  6. Step 6: Final answer
    x = 511,780.77

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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.