Home / 874,830.56-1,307,452.42-638,670.56

Finding the Fourth Proportional to 874,830.56, 1,307,452.42 and 638,670.56

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Solution

The fourth proportional to 874,830.56, 1,307,452.42 and 638,670.56 is: 954,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,830.56 : 1,307,452.42 = 638,670.56 : x
  2. Step 2: Convert to fraction form
    874,830.56/1,307,452.42 = 638,670.56/x
  3. Step 3: Cross multiply
    874,830.56x = 1,307,452.42 × 638,670.56
  4. Step 4: Simplify right side
    874,830.56x = 835,031,369,254.76
  5. Step 5: Solve for x
    x = 835,031,369,254.76/874,830.56
  6. Step 6: Final answer
    x = 954,506.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.