Home / 988,590.80-1,387,176.40-988,590.80

Finding the Fourth Proportional to 988,590.80, 1,387,176.40 and 988,590.80

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Solution

The fourth proportional to 988,590.80, 1,387,176.40 and 988,590.80 is: 1,387,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,590.80 : 1,387,176.40 = 988,590.80 : x
  2. Step 2: Convert to fraction form
    988,590.80/1,387,176.40 = 988,590.80/x
  3. Step 3: Cross multiply
    988,590.80x = 1,387,176.40 × 988,590.80
  4. Step 4: Simplify right side
    988,590.80x = 1,371,349,827,017.12
  5. Step 5: Solve for x
    x = 1,371,349,827,017.12/988,590.80
  6. Step 6: Final answer
    x = 1,387,176.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.