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Finding the Fourth Proportional to 478,928.16, 660,925.31 and 264,075.93

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Solution

The fourth proportional to 478,928.16, 660,925.31 and 264,075.93 is: 364,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,928.16 : 660,925.31 = 264,075.93 : x
  2. Step 2: Convert to fraction form
    478,928.16/660,925.31 = 264,075.93/x
  3. Step 3: Cross multiply
    478,928.16x = 660,925.31 × 264,075.93
  4. Step 4: Simplify right side
    478,928.16x = 174,534,464,578.41
  5. Step 5: Solve for x
    x = 174,534,464,578.41/478,928.16
  6. Step 6: Final answer
    x = 364,427.23

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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.