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Finding the Fourth Proportional to 530.19, 794.43 and 510.21

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Solution

The fourth proportional to 530.19, 794.43 and 510.21 is: 764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.19 : 794.43 = 510.21 : x
  2. Step 2: Convert to fraction form
    530.19/794.43 = 510.21/x
  3. Step 3: Cross multiply
    530.19x = 794.43 × 510.21
  4. Step 4: Simplify right side
    530.19x = 405,326.13
  5. Step 5: Solve for x
    x = 405,326.13/530.19
  6. Step 6: Final answer
    x = 764.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.