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Finding the Fourth Proportional to 583,907.55, 805,792.64 and 315,635.55

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Solution

The fourth proportional to 583,907.55, 805,792.64 and 315,635.55 is: 435,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,907.55 : 805,792.64 = 315,635.55 : x
  2. Step 2: Convert to fraction form
    583,907.55/805,792.64 = 315,635.55/x
  3. Step 3: Cross multiply
    583,907.55x = 805,792.64 × 315,635.55
  4. Step 4: Simplify right side
    583,907.55x = 254,336,801,534.17
  5. Step 5: Solve for x
    x = 254,336,801,534.17/583,907.55
  6. Step 6: Final answer
    x = 435,577.18

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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.