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Finding the Fourth Proportional to 501,587.91, 692,515.58 and 310,803.75

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Solution

The fourth proportional to 501,587.91, 692,515.58 and 310,803.75 is: 429,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,587.91 : 692,515.58 = 310,803.75 : x
  2. Step 2: Convert to fraction form
    501,587.91/692,515.58 = 310,803.75/x
  3. Step 3: Cross multiply
    501,587.91x = 692,515.58 × 310,803.75
  4. Step 4: Simplify right side
    501,587.91x = 215,236,437,643.41
  5. Step 5: Solve for x
    x = 215,236,437,643.41/501,587.91
  6. Step 6: Final answer
    x = 429,110.10

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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.