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Finding the Fourth Proportional to 779,373.60, 1,075,644 and 457,188

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Solution

The fourth proportional to 779,373.60, 1,075,644 and 457,188 is: 630,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,373.60 : 1,075,644 = 457,188 : x
  2. Step 2: Convert to fraction form
    779,373.60/1,075,644 = 457,188/x
  3. Step 3: Cross multiply
    779,373.60x = 1,075,644 × 457,188
  4. Step 4: Simplify right side
    779,373.60x = 491,771,529,072
  5. Step 5: Solve for x
    x = 491,771,529,072/779,373.60
  6. Step 6: Final answer
    x = 630,983.05

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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.