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Finding the Fourth Proportional to 573,870.40, 859,768.80 and 507,515.20

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Solution

The fourth proportional to 573,870.40, 859,768.80 and 507,515.20 is: 760,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,870.40 : 859,768.80 = 507,515.20 : x
  2. Step 2: Convert to fraction form
    573,870.40/859,768.80 = 507,515.20/x
  3. Step 3: Cross multiply
    573,870.40x = 859,768.80 × 507,515.20
  4. Step 4: Simplify right side
    573,870.40x = 436,345,734,485.76
  5. Step 5: Solve for x
    x = 436,345,734,485.76/573,870.40
  6. Step 6: Final answer
    x = 760,355.88

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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.