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Finding the Fourth Proportional to 504.77, 753.40 and 435.06

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Solution

The fourth proportional to 504.77, 753.40 and 435.06 is: 649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.77 : 753.40 = 435.06 : x
  2. Step 2: Convert to fraction form
    504.77/753.40 = 435.06/x
  3. Step 3: Cross multiply
    504.77x = 753.40 × 435.06
  4. Step 4: Simplify right side
    504.77x = 327,774.20
  5. Step 5: Solve for x
    x = 327,774.20/504.77
  6. Step 6: Final answer
    x = 649.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.