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Finding the Fourth Proportional to 605,074.80, 907,612.20 and 507,643.95

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Solution

The fourth proportional to 605,074.80, 907,612.20 and 507,643.95 is: 761,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,074.80 : 907,612.20 = 507,643.95 : x
  2. Step 2: Convert to fraction form
    605,074.80/907,612.20 = 507,643.95/x
  3. Step 3: Cross multiply
    605,074.80x = 907,612.20 × 507,643.95
  4. Step 4: Simplify right side
    605,074.80x = 460,743,842,276.19
  5. Step 5: Solve for x
    x = 460,743,842,276.19/605,074.80
  6. Step 6: Final answer
    x = 761,465.93

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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.