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Finding the Fourth Proportional to 993,600.60, 1,490,595.30 and 424,980.60

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Solution

The fourth proportional to 993,600.60, 1,490,595.30 and 424,980.60 is: 637,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,600.60 : 1,490,595.30 = 424,980.60 : x
  2. Step 2: Convert to fraction form
    993,600.60/1,490,595.30 = 424,980.60/x
  3. Step 3: Cross multiply
    993,600.60x = 1,490,595.30 × 424,980.60
  4. Step 4: Simplify right side
    993,600.60x = 633,474,084,951.18
  5. Step 5: Solve for x
    x = 633,474,084,951.18/993,600.60
  6. Step 6: Final answer
    x = 637,554.05

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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.