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Finding the Fourth Proportional to 615,184.70, 849,031.56 and 357,006.21

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Solution

The fourth proportional to 615,184.70, 849,031.56 and 357,006.21 is: 492,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,184.70 : 849,031.56 = 357,006.21 : x
  2. Step 2: Convert to fraction form
    615,184.70/849,031.56 = 357,006.21/x
  3. Step 3: Cross multiply
    615,184.70x = 849,031.56 × 357,006.21
  4. Step 4: Simplify right side
    615,184.70x = 303,109,539,405.99
  5. Step 5: Solve for x
    x = 303,109,539,405.99/615,184.70
  6. Step 6: Final answer
    x = 492,713.07

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1.5x scale

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.