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Finding the Fourth Proportional to 586,721.60, 880,111.20 and 306,785.60

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Solution

The fourth proportional to 586,721.60, 880,111.20 and 306,785.60 is: 460,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,721.60 : 880,111.20 = 306,785.60 : x
  2. Step 2: Convert to fraction form
    586,721.60/880,111.20 = 306,785.60/x
  3. Step 3: Cross multiply
    586,721.60x = 880,111.20 × 306,785.60
  4. Step 4: Simplify right side
    586,721.60x = 270,005,442,558.72
  5. Step 5: Solve for x
    x = 270,005,442,558.72/586,721.60
  6. Step 6: Final answer
    x = 460,193.46

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1.5x scale

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.