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Finding the Fourth Proportional to 559,975.20, 839,962.80 and 538,202.40

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Solution

The fourth proportional to 559,975.20, 839,962.80 and 538,202.40 is: 807,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,975.20 : 839,962.80 = 538,202.40 : x
  2. Step 2: Convert to fraction form
    559,975.20/839,962.80 = 538,202.40/x
  3. Step 3: Cross multiply
    559,975.20x = 839,962.80 × 538,202.40
  4. Step 4: Simplify right side
    559,975.20x = 452,069,994,870.72
  5. Step 5: Solve for x
    x = 452,069,994,870.72/559,975.20
  6. Step 6: Final answer
    x = 807,303.60

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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.