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Finding the Fourth Proportional to 1,036.51, 1,430.01 and 588.31

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Solution

The fourth proportional to 1,036.51, 1,430.01 and 588.31 is: 811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.51 : 1,430.01 = 588.31 : x
  2. Step 2: Convert to fraction form
    1,036.51/1,430.01 = 588.31/x
  3. Step 3: Cross multiply
    1,036.51x = 1,430.01 × 588.31
  4. Step 4: Simplify right side
    1,036.51x = 841,285.61
  5. Step 5: Solve for x
    x = 841,285.61/1,036.51
  6. Step 6: Final answer
    x = 811.65

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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.