Home / 987,341.13-1,362,631.32-711,925.47

Finding the Fourth Proportional to 987,341.13, 1,362,631.32 and 711,925.47

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Solution

The fourth proportional to 987,341.13, 1,362,631.32 and 711,925.47 is: 982,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,341.13 : 1,362,631.32 = 711,925.47 : x
  2. Step 2: Convert to fraction form
    987,341.13/1,362,631.32 = 711,925.47/x
  3. Step 3: Cross multiply
    987,341.13x = 1,362,631.32 × 711,925.47
  4. Step 4: Simplify right side
    987,341.13x = 970,091,942,927.72
  5. Step 5: Solve for x
    x = 970,091,942,927.72/987,341.13
  6. Step 6: Final answer
    x = 982,529.66

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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.