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Finding the Fourth Proportional to 634,762.85, 875,988.85 and 348,282.86

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Solution

The fourth proportional to 634,762.85, 875,988.85 and 348,282.86 is: 480,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,762.85 : 875,988.85 = 348,282.86 : x
  2. Step 2: Convert to fraction form
    634,762.85/875,988.85 = 348,282.86/x
  3. Step 3: Cross multiply
    634,762.85x = 875,988.85 × 348,282.86
  4. Step 4: Simplify right side
    634,762.85x = 305,091,896,755.46
  5. Step 5: Solve for x
    x = 305,091,896,755.46/634,762.85
  6. Step 6: Final answer
    x = 480,639.19

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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.