Home / 918,375.67-1,267,285.53-510,445.50

Finding the Fourth Proportional to 918,375.67, 1,267,285.53 and 510,445.50

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Solution

The fourth proportional to 918,375.67, 1,267,285.53 and 510,445.50 is: 704,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,375.67 : 1,267,285.53 = 510,445.50 : x
  2. Step 2: Convert to fraction form
    918,375.67/1,267,285.53 = 510,445.50/x
  3. Step 3: Cross multiply
    918,375.67x = 1,267,285.53 × 510,445.50
  4. Step 4: Simplify right side
    918,375.67x = 646,880,196,003.62
  5. Step 5: Solve for x
    x = 646,880,196,003.62/918,375.67
  6. Step 6: Final answer
    x = 704,374.27

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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.