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Finding the Fourth Proportional to 632,915.32, 873,445.36 and 346,435.64

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Solution

The fourth proportional to 632,915.32, 873,445.36 and 346,435.64 is: 478,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,915.32 : 873,445.36 = 346,435.64 : x
  2. Step 2: Convert to fraction form
    632,915.32/873,445.36 = 346,435.64/x
  3. Step 3: Cross multiply
    632,915.32x = 873,445.36 × 346,435.64
  4. Step 4: Simplify right side
    632,915.32x = 302,592,602,296.63
  5. Step 5: Solve for x
    x = 302,592,602,296.63/632,915.32
  6. Step 6: Final answer
    x = 478,093.34

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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.