Home / 1,173,948.76-1,620,055.74-637,404.76

Finding the Fourth Proportional to 1,173,948.76, 1,620,055.74 and 637,404.76

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Solution

The fourth proportional to 1,173,948.76, 1,620,055.74 and 637,404.76 is: 879,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,948.76 : 1,620,055.74 = 637,404.76 : x
  2. Step 2: Convert to fraction form
    1,173,948.76/1,620,055.74 = 637,404.76/x
  3. Step 3: Cross multiply
    1,173,948.76x = 1,620,055.74 × 637,404.76
  4. Step 4: Simplify right side
    1,173,948.76x = 1,032,631,240,141.32
  5. Step 5: Solve for x
    x = 1,032,631,240,141.32/1,173,948.76
  6. Step 6: Final answer
    x = 879,622.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.