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Finding the Fourth Proportional to 627,510.80, 941,784.60 and 291,069.20

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Solution

The fourth proportional to 627,510.80, 941,784.60 and 291,069.20 is: 436,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,510.80 : 941,784.60 = 291,069.20 : x
  2. Step 2: Convert to fraction form
    627,510.80/941,784.60 = 291,069.20/x
  3. Step 3: Cross multiply
    627,510.80x = 941,784.60 × 291,069.20
  4. Step 4: Simplify right side
    627,510.80x = 274,124,490,094.32
  5. Step 5: Solve for x
    x = 274,124,490,094.32/627,510.80
  6. Step 6: Final answer
    x = 436,844.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.