Home / 1,219,309.64-1,683,088.98-992,561.48

Finding the Fourth Proportional to 1,219,309.64, 1,683,088.98 and 992,561.48

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Solution

The fourth proportional to 1,219,309.64, 1,683,088.98 and 992,561.48 is: 1,370,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,309.64 : 1,683,088.98 = 992,561.48 : x
  2. Step 2: Convert to fraction form
    1,219,309.64/1,683,088.98 = 992,561.48/x
  3. Step 3: Cross multiply
    1,219,309.64x = 1,683,088.98 × 992,561.48
  4. Step 4: Simplify right side
    1,219,309.64x = 1,670,569,288,960.49
  5. Step 5: Solve for x
    x = 1,670,569,288,960.49/1,219,309.64
  6. Step 6: Final answer
    x = 1,370,094.38

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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.