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Finding the Fourth Proportional to 583,388.32, 805,076.24 and 315,116.32

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Solution

The fourth proportional to 583,388.32, 805,076.24 and 315,116.32 is: 434,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,388.32 : 805,076.24 = 315,116.32 : x
  2. Step 2: Convert to fraction form
    583,388.32/805,076.24 = 315,116.32/x
  3. Step 3: Cross multiply
    583,388.32x = 805,076.24 × 315,116.32
  4. Step 4: Simplify right side
    583,388.32x = 253,692,662,068.24
  5. Step 5: Solve for x
    x = 253,692,662,068.24/583,388.32
  6. Step 6: Final answer
    x = 434,860.72

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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.