Home / 1,431,289.02-1,975,128.67-786,705.06

Finding the Fourth Proportional to 1,431,289.02, 1,975,128.67 and 786,705.06

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Solution

The fourth proportional to 1,431,289.02, 1,975,128.67 and 786,705.06 is: 1,085,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,289.02 : 1,975,128.67 = 786,705.06 : x
  2. Step 2: Convert to fraction form
    1,431,289.02/1,975,128.67 = 786,705.06/x
  3. Step 3: Cross multiply
    1,431,289.02x = 1,975,128.67 × 786,705.06
  4. Step 4: Simplify right side
    1,431,289.02x = 1,553,843,718,840.07
  5. Step 5: Solve for x
    x = 1,553,843,718,840.07/1,431,289.02
  6. Step 6: Final answer
    x = 1,085,625.40

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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.