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Finding the Fourth Proportional to 607,129.80, 910,913.40 and 585,259.80

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Solution

The fourth proportional to 607,129.80, 910,913.40 and 585,259.80 is: 878,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,129.80 : 910,913.40 = 585,259.80 : x
  2. Step 2: Convert to fraction form
    607,129.80/910,913.40 = 585,259.80/x
  3. Step 3: Cross multiply
    607,129.80x = 910,913.40 × 585,259.80
  4. Step 4: Simplify right side
    607,129.80x = 533,120,994,301.32
  5. Step 5: Solve for x
    x = 533,120,994,301.32/607,129.80
  6. Step 6: Final answer
    x = 878,100.52

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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.