Home / 909,715.25-1,255,384.88-501,808.16

Finding the Fourth Proportional to 909,715.25, 1,255,384.88 and 501,808.16

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Solution

The fourth proportional to 909,715.25, 1,255,384.88 and 501,808.16 is: 692,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,715.25 : 1,255,384.88 = 501,808.16 : x
  2. Step 2: Convert to fraction form
    909,715.25/1,255,384.88 = 501,808.16/x
  3. Step 3: Cross multiply
    909,715.25x = 1,255,384.88 × 501,808.16
  4. Step 4: Simplify right side
    909,715.25x = 629,962,379,235.82
  5. Step 5: Solve for x
    x = 629,962,379,235.82/909,715.25
  6. Step 6: Final answer
    x = 692,483.04

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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.