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Finding the Fourth Proportional to 612,246.60, 918,369.90 and 606,341.70

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Solution

The fourth proportional to 612,246.60, 918,369.90 and 606,341.70 is: 909,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,246.60 : 918,369.90 = 606,341.70 : x
  2. Step 2: Convert to fraction form
    612,246.60/918,369.90 = 606,341.70/x
  3. Step 3: Cross multiply
    612,246.60x = 918,369.90 × 606,341.70
  4. Step 4: Simplify right side
    612,246.60x = 556,845,966,394.83
  5. Step 5: Solve for x
    x = 556,845,966,394.83/612,246.60
  6. Step 6: Final answer
    x = 909,512.55

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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.