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Finding the Fourth Proportional to 993,525.10, 1,490,482.05 and 424,905.10

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Solution

The fourth proportional to 993,525.10, 1,490,482.05 and 424,905.10 is: 637,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,525.10 : 1,490,482.05 = 424,905.10 : x
  2. Step 2: Convert to fraction form
    993,525.10/1,490,482.05 = 424,905.10/x
  3. Step 3: Cross multiply
    993,525.10x = 1,490,482.05 × 424,905.10
  4. Step 4: Simplify right side
    993,525.10x = 633,313,424,503.46
  5. Step 5: Solve for x
    x = 633,313,424,503.46/993,525.10
  6. Step 6: Final answer
    x = 637,440.79

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Double scale
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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.