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Finding the Fourth Proportional to 655,075.94, 904,359.62 and 459,443.21

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Solution

The fourth proportional to 655,075.94, 904,359.62 and 459,443.21 is: 634,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,075.94 : 904,359.62 = 459,443.21 : x
  2. Step 2: Convert to fraction form
    655,075.94/904,359.62 = 459,443.21/x
  3. Step 3: Cross multiply
    655,075.94x = 904,359.62 × 459,443.21
  4. Step 4: Simplify right side
    655,075.94x = 415,501,886,807.18
  5. Step 5: Solve for x
    x = 415,501,886,807.18/655,075.94
  6. Step 6: Final answer
    x = 634,280.49

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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.