Home / 993,830.15-1,490,902.05-425,214.93

Finding the Fourth Proportional to 993,830.15, 1,490,902.05 and 425,214.93

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Solution

The fourth proportional to 993,830.15, 1,490,902.05 and 425,214.93 is: 637,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,830.15 : 1,490,902.05 = 425,214.93 : x
  2. Step 2: Convert to fraction form
    993,830.15/1,490,902.05 = 425,214.93/x
  3. Step 3: Cross multiply
    993,830.15x = 1,490,902.05 × 425,214.93
  4. Step 4: Simplify right side
    993,830.15x = 633,953,811,024.44
  5. Step 5: Solve for x
    x = 633,953,811,024.44/993,830.15
  6. Step 6: Final answer
    x = 637,889.50

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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.