Home / 1,038,490.80-1,557,736.20-637,832.40

Finding the Fourth Proportional to 1,038,490.80, 1,557,736.20 and 637,832.40

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Solution

The fourth proportional to 1,038,490.80, 1,557,736.20 and 637,832.40 is: 956,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,490.80 : 1,557,736.20 = 637,832.40 : x
  2. Step 2: Convert to fraction form
    1,038,490.80/1,557,736.20 = 637,832.40/x
  3. Step 3: Cross multiply
    1,038,490.80x = 1,557,736.20 × 637,832.40
  4. Step 4: Simplify right side
    1,038,490.80x = 993,574,619,012.88
  5. Step 5: Solve for x
    x = 993,574,619,012.88/1,038,490.80
  6. Step 6: Final answer
    x = 956,748.60

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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.