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Finding the Fourth Proportional to 570,375.33, 787,117.95 and 315,726.51

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Solution

The fourth proportional to 570,375.33, 787,117.95 and 315,726.51 is: 435,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,375.33 : 787,117.95 = 315,726.51 : x
  2. Step 2: Convert to fraction form
    570,375.33/787,117.95 = 315,726.51/x
  3. Step 3: Cross multiply
    570,375.33x = 787,117.95 × 315,726.51
  4. Step 4: Simplify right side
    570,375.33x = 248,514,003,311.86
  5. Step 5: Solve for x
    x = 248,514,003,311.86/570,375.33
  6. Step 6: Final answer
    x = 435,702.58

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1.5x scale

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.