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Finding the Fourth Proportional to 615,572.48, 849,488.64 and 347,298.56

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Solution

The fourth proportional to 615,572.48, 849,488.64 and 347,298.56 is: 479,271.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,572.48 : 849,488.64 = 347,298.56 : x
  2. Step 2: Convert to fraction form
    615,572.48/849,488.64 = 347,298.56/x
  3. Step 3: Cross multiply
    615,572.48x = 849,488.64 × 347,298.56
  4. Step 4: Simplify right side
    615,572.48x = 295,026,181,408.36
  5. Step 5: Solve for x
    x = 295,026,181,408.36/615,572.48
  6. Step 6: Final answer
    x = 479,271.23

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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.