Home / 700,400.34-1,048,916.28-399,970.35

Finding the Fourth Proportional to 700,400.34, 1,048,916.28 and 399,970.35

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Solution

The fourth proportional to 700,400.34, 1,048,916.28 and 399,970.35 is: 598,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,400.34 : 1,048,916.28 = 399,970.35 : x
  2. Step 2: Convert to fraction form
    700,400.34/1,048,916.28 = 399,970.35/x
  3. Step 3: Cross multiply
    700,400.34x = 1,048,916.28 × 399,970.35
  4. Step 4: Simplify right side
    700,400.34x = 419,535,411,632.30
  5. Step 5: Solve for x
    x = 419,535,411,632.30/700,400.34
  6. Step 6: Final answer
    x = 598,993.73

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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.