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Finding the Fourth Proportional to 612,129.60, 918,194.40 and 606,224.70

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Solution

The fourth proportional to 612,129.60, 918,194.40 and 606,224.70 is: 909,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,129.60 : 918,194.40 = 606,224.70 : x
  2. Step 2: Convert to fraction form
    612,129.60/918,194.40 = 606,224.70/x
  3. Step 3: Cross multiply
    612,129.60x = 918,194.40 × 606,224.70
  4. Step 4: Simplify right side
    612,129.60x = 556,632,124,681.68
  5. Step 5: Solve for x
    x = 556,632,124,681.68/612,129.60
  6. Step 6: Final answer
    x = 909,337.05

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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.