Home / 859,494.18-1,288,439.94-290,477.40

Finding the Fourth Proportional to 859,494.18, 1,288,439.94 and 290,477.40

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Solution

The fourth proportional to 859,494.18, 1,288,439.94 and 290,477.40 is: 435,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,494.18 : 1,288,439.94 = 290,477.40 : x
  2. Step 2: Convert to fraction form
    859,494.18/1,288,439.94 = 290,477.40/x
  3. Step 3: Cross multiply
    859,494.18x = 1,288,439.94 × 290,477.40
  4. Step 4: Simplify right side
    859,494.18x = 374,262,683,827.36
  5. Step 5: Solve for x
    x = 374,262,683,827.36/859,494.18
  6. Step 6: Final answer
    x = 435,445.28

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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.