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Finding the Fourth Proportional to 661,536.08, 912,892 and 375,075.44

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Solution

The fourth proportional to 661,536.08, 912,892 and 375,075.44 is: 517,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,536.08 : 912,892 = 375,075.44 : x
  2. Step 2: Convert to fraction form
    661,536.08/912,892 = 375,075.44/x
  3. Step 3: Cross multiply
    661,536.08x = 912,892 × 375,075.44
  4. Step 4: Simplify right side
    661,536.08x = 342,403,368,572.48
  5. Step 5: Solve for x
    x = 342,403,368,572.48/661,536.08
  6. Step 6: Final answer
    x = 517,588.35

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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.