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Finding the Fourth Proportional to 411,075.35, 615,118.35 and 339,330.82

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Solution

The fourth proportional to 411,075.35, 615,118.35 and 339,330.82 is: 507,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,075.35 : 615,118.35 = 339,330.82 : x
  2. Step 2: Convert to fraction form
    411,075.35/615,118.35 = 339,330.82/x
  3. Step 3: Cross multiply
    411,075.35x = 615,118.35 × 339,330.82
  4. Step 4: Simplify right side
    411,075.35x = 208,728,614,990.59
  5. Step 5: Solve for x
    x = 208,728,614,990.59/411,075.35
  6. Step 6: Final answer
    x = 507,762.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.