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Finding the Fourth Proportional to 615,224.04, 849,029.64 and 357,081.72

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Solution

The fourth proportional to 615,224.04, 849,029.64 and 357,081.72 is: 492,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,224.04 : 849,029.64 = 357,081.72 : x
  2. Step 2: Convert to fraction form
    615,224.04/849,029.64 = 357,081.72/x
  3. Step 3: Cross multiply
    615,224.04x = 849,029.64 × 357,081.72
  4. Step 4: Simplify right side
    615,224.04x = 303,172,964,182.18
  5. Step 5: Solve for x
    x = 303,172,964,182.18/615,224.04
  6. Step 6: Final answer
    x = 492,784.65

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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.