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Finding the Fourth Proportional to 655,500.13, 904,607.09 and 369,030.47

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Solution

The fourth proportional to 655,500.13, 904,607.09 and 369,030.47 is: 509,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,500.13 : 904,607.09 = 369,030.47 : x
  2. Step 2: Convert to fraction form
    655,500.13/904,607.09 = 369,030.47/x
  3. Step 3: Cross multiply
    655,500.13x = 904,607.09 × 369,030.47
  4. Step 4: Simplify right side
    655,500.13x = 333,827,574,603.71
  5. Step 5: Solve for x
    x = 333,827,574,603.71/655,500.13
  6. Step 6: Final answer
    x = 509,271.56

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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.