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Finding the Fourth Proportional to 602,987.28, 832,060.80 and 348,420.48

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Solution

The fourth proportional to 602,987.28, 832,060.80 and 348,420.48 is: 480,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,987.28 : 832,060.80 = 348,420.48 : x
  2. Step 2: Convert to fraction form
    602,987.28/832,060.80 = 348,420.48/x
  3. Step 3: Cross multiply
    602,987.28x = 832,060.80 × 348,420.48
  4. Step 4: Simplify right side
    602,987.28x = 289,907,023,325.18
  5. Step 5: Solve for x
    x = 289,907,023,325.18/602,987.28
  6. Step 6: Final answer
    x = 480,784.64

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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.