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Finding the Fourth Proportional to 477,064.61, 657,671.57 and 379,412.36

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Solution

The fourth proportional to 477,064.61, 657,671.57 and 379,412.36 is: 523,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,064.61 : 657,671.57 = 379,412.36 : x
  2. Step 2: Convert to fraction form
    477,064.61/657,671.57 = 379,412.36/x
  3. Step 3: Cross multiply
    477,064.61x = 657,671.57 × 379,412.36
  4. Step 4: Simplify right side
    477,064.61x = 249,528,722,478.61
  5. Step 5: Solve for x
    x = 249,528,722,478.61/477,064.61
  6. Step 6: Final answer
    x = 523,050.16

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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.