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Finding the Fourth Proportional to 926,888.60, 1,388,000.10 and 609,627.80

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Solution

The fourth proportional to 926,888.60, 1,388,000.10 and 609,627.80 is: 912,907.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,888.60 : 1,388,000.10 = 609,627.80 : x
  2. Step 2: Convert to fraction form
    926,888.60/1,388,000.10 = 609,627.80/x
  3. Step 3: Cross multiply
    926,888.60x = 1,388,000.10 × 609,627.80
  4. Step 4: Simplify right side
    926,888.60x = 846,163,447,362.78
  5. Step 5: Solve for x
    x = 846,163,447,362.78/926,888.60
  6. Step 6: Final answer
    x = 912,907.38

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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.