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Finding the Fourth Proportional to 634,461.80, 875,589.36 and 348,008.54

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Solution

The fourth proportional to 634,461.80, 875,589.36 and 348,008.54 is: 480,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,461.80 : 875,589.36 = 348,008.54 : x
  2. Step 2: Convert to fraction form
    634,461.80/875,589.36 = 348,008.54/x
  3. Step 3: Cross multiply
    634,461.80x = 875,589.36 × 348,008.54
  4. Step 4: Simplify right side
    634,461.80x = 304,712,574,813.13
  5. Step 5: Solve for x
    x = 304,712,574,813.13/634,461.80
  6. Step 6: Final answer
    x = 480,269.38

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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.