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Finding the Fourth Proportional to 615,460.48, 849,368.64 and 347,182.72

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Solution

The fourth proportional to 615,460.48, 849,368.64 and 347,182.72 is: 479,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,460.48 : 849,368.64 = 347,182.72 : x
  2. Step 2: Convert to fraction form
    615,460.48/849,368.64 = 347,182.72/x
  3. Step 3: Cross multiply
    615,460.48x = 849,368.64 × 347,182.72
  4. Step 4: Simplify right side
    615,460.48x = 294,886,114,717.90
  5. Step 5: Solve for x
    x = 294,886,114,717.90/615,460.48
  6. Step 6: Final answer
    x = 479,130.87

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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.