Home / 847,915.86-1,170,068.85-485,342.58

Finding the Fourth Proportional to 847,915.86, 1,170,068.85 and 485,342.58

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Solution

The fourth proportional to 847,915.86, 1,170,068.85 and 485,342.58 is: 669,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,915.86 : 1,170,068.85 = 485,342.58 : x
  2. Step 2: Convert to fraction form
    847,915.86/1,170,068.85 = 485,342.58/x
  3. Step 3: Cross multiply
    847,915.86x = 1,170,068.85 × 485,342.58
  4. Step 4: Simplify right side
    847,915.86x = 567,884,234,436.63
  5. Step 5: Solve for x
    x = 567,884,234,436.63/847,915.86
  6. Step 6: Final answer
    x = 669,741.26

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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.