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Finding the Fourth Proportional to 632,312.67, 872,612.55 and 345,832.77

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Solution

The fourth proportional to 632,312.67, 872,612.55 and 345,832.77 is: 477,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,312.67 : 872,612.55 = 345,832.77 : x
  2. Step 2: Convert to fraction form
    632,312.67/872,612.55 = 345,832.77/x
  3. Step 3: Cross multiply
    632,312.67x = 872,612.55 × 345,832.77
  4. Step 4: Simplify right side
    632,312.67x = 301,778,015,303.26
  5. Step 5: Solve for x
    x = 301,778,015,303.26/632,312.67
  6. Step 6: Final answer
    x = 477,260.74

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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.