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Finding the Fourth Proportional to 655,501.13, 904,608.47 and 369,031.47

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Solution

The fourth proportional to 655,501.13, 904,608.47 and 369,031.47 is: 509,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,501.13 : 904,608.47 = 369,031.47 : x
  2. Step 2: Convert to fraction form
    655,501.13/904,608.47 = 369,031.47/x
  3. Step 3: Cross multiply
    655,501.13x = 904,608.47 × 369,031.47
  4. Step 4: Simplify right side
    655,501.13x = 333,828,993,458.55
  5. Step 5: Solve for x
    x = 333,828,993,458.55/655,501.13
  6. Step 6: Final answer
    x = 509,272.95

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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.