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Finding the Fourth Proportional to 665,842.16, 918,866.04 and 364,036.16

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Solution

The fourth proportional to 665,842.16, 918,866.04 and 364,036.16 is: 502,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,842.16 : 918,866.04 = 364,036.16 : x
  2. Step 2: Convert to fraction form
    665,842.16/918,866.04 = 364,036.16/x
  3. Step 3: Cross multiply
    665,842.16x = 918,866.04 × 364,036.16
  4. Step 4: Simplify right side
    665,842.16x = 334,500,464,756.01
  5. Step 5: Solve for x
    x = 334,500,464,756.01/665,842.16
  6. Step 6: Final answer
    x = 502,372.01

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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.