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Finding the Fourth Proportional to 583,740.75, 805,563.33 and 315,468.75

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Solution

The fourth proportional to 583,740.75, 805,563.33 and 315,468.75 is: 435,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,740.75 : 805,563.33 = 315,468.75 : x
  2. Step 2: Convert to fraction form
    583,740.75/805,563.33 = 315,468.75/x
  3. Step 3: Cross multiply
    583,740.75x = 805,563.33 × 315,468.75
  4. Step 4: Simplify right side
    583,740.75x = 254,130,056,760.94
  5. Step 5: Solve for x
    x = 254,130,056,760.94/583,740.75
  6. Step 6: Final answer
    x = 435,347.47

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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.