Home / 756,521.60-1,134,705.60-257,878.40

Finding the Fourth Proportional to 756,521.60, 1,134,705.60 and 257,878.40

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Solution

The fourth proportional to 756,521.60, 1,134,705.60 and 257,878.40 is: 386,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,521.60 : 1,134,705.60 = 257,878.40 : x
  2. Step 2: Convert to fraction form
    756,521.60/1,134,705.60 = 257,878.40/x
  3. Step 3: Cross multiply
    756,521.60x = 1,134,705.60 × 257,878.40
  4. Step 4: Simplify right side
    756,521.60x = 292,616,064,599.04
  5. Step 5: Solve for x
    x = 292,616,064,599.04/756,521.60
  6. Step 6: Final answer
    x = 386,791.42

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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.