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Finding the Fourth Proportional to 605,095.80, 907,643.70 and 507,664.95

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Solution

The fourth proportional to 605,095.80, 907,643.70 and 507,664.95 is: 761,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,095.80 : 907,643.70 = 507,664.95 : x
  2. Step 2: Convert to fraction form
    605,095.80/907,643.70 = 507,664.95/x
  3. Step 3: Cross multiply
    605,095.80x = 907,643.70 × 507,664.95
  4. Step 4: Simplify right side
    605,095.80x = 460,778,893,578.32
  5. Step 5: Solve for x
    x = 460,778,893,578.32/605,095.80
  6. Step 6: Final answer
    x = 761,497.43

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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.