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Finding the Fourth Proportional to 1,316.04, 1,973.16 and 622.32

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Solution

The fourth proportional to 1,316.04, 1,973.16 and 622.32 is: 933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.04 : 1,973.16 = 622.32 : x
  2. Step 2: Convert to fraction form
    1,316.04/1,973.16 = 622.32/x
  3. Step 3: Cross multiply
    1,316.04x = 1,973.16 × 622.32
  4. Step 4: Simplify right side
    1,316.04x = 1,227,936.93
  5. Step 5: Solve for x
    x = 1,227,936.93/1,316.04
  6. Step 6: Final answer
    x = 933.05

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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.