Home / 1,105,421.80-1,657,905.90-306,502.60

Finding the Fourth Proportional to 1,105,421.80, 1,657,905.90 and 306,502.60

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Solution

The fourth proportional to 1,105,421.80, 1,657,905.90 and 306,502.60 is: 459,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,421.80 : 1,657,905.90 = 306,502.60 : x
  2. Step 2: Convert to fraction form
    1,105,421.80/1,657,905.90 = 306,502.60/x
  3. Step 3: Cross multiply
    1,105,421.80x = 1,657,905.90 × 306,502.60
  4. Step 4: Simplify right side
    1,105,421.80x = 508,152,468,905.34
  5. Step 5: Solve for x
    x = 508,152,468,905.34/1,105,421.80
  6. Step 6: Final answer
    x = 459,691.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.