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Finding the Fourth Proportional to 575,347.86, 793,990.62 and 320,671.71

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Solution

The fourth proportional to 575,347.86, 793,990.62 and 320,671.71 is: 442,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,347.86 : 793,990.62 = 320,671.71 : x
  2. Step 2: Convert to fraction form
    575,347.86/793,990.62 = 320,671.71/x
  3. Step 3: Cross multiply
    575,347.86x = 793,990.62 × 320,671.71
  4. Step 4: Simplify right side
    575,347.86x = 254,610,329,839.36
  5. Step 5: Solve for x
    x = 254,610,329,839.36/575,347.86
  6. Step 6: Final answer
    x = 442,532.85

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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.