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Finding the Fourth Proportional to 555.58, 827.83 and 530.74

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Solution

The fourth proportional to 555.58, 827.83 and 530.74 is: 790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.58 : 827.83 = 530.74 : x
  2. Step 2: Convert to fraction form
    555.58/827.83 = 530.74/x
  3. Step 3: Cross multiply
    555.58x = 827.83 × 530.74
  4. Step 4: Simplify right side
    555.58x = 439,362.49
  5. Step 5: Solve for x
    x = 439,362.49/555.58
  6. Step 6: Final answer
    x = 790.82

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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.