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Finding the Fourth Proportional to 472,313.60, 651,782.40 and 257,445.44

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Solution

The fourth proportional to 472,313.60, 651,782.40 and 257,445.44 is: 355,269.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,313.60 : 651,782.40 = 257,445.44 : x
  2. Step 2: Convert to fraction form
    472,313.60/651,782.40 = 257,445.44/x
  3. Step 3: Cross multiply
    472,313.60x = 651,782.40 × 257,445.44
  4. Step 4: Simplify right side
    472,313.60x = 167,798,406,752.26
  5. Step 5: Solve for x
    x = 167,798,406,752.26/472,313.60
  6. Step 6: Final answer
    x = 355,269.06

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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.