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Finding the Fourth Proportional to 670,487.06, 925,272.16 and 368,681.06

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Solution

The fourth proportional to 670,487.06, 925,272.16 and 368,681.06 is: 508,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,487.06 : 925,272.16 = 368,681.06 : x
  2. Step 2: Convert to fraction form
    670,487.06/925,272.16 = 368,681.06/x
  3. Step 3: Cross multiply
    670,487.06x = 925,272.16 × 368,681.06
  4. Step 4: Simplify right side
    670,487.06x = 341,130,322,128.77
  5. Step 5: Solve for x
    x = 341,130,322,128.77/670,487.06
  6. Step 6: Final answer
    x = 508,779.87

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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.