Home / 684,056-1,026,220.08-210,721.16

Finding the Fourth Proportional to 684,056, 1,026,220.08 and 210,721.16

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Solution

The fourth proportional to 684,056, 1,026,220.08 and 210,721.16 is: 316,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,056 : 1,026,220.08 = 210,721.16 : x
  2. Step 2: Convert to fraction form
    684,056/1,026,220.08 = 210,721.16/x
  3. Step 3: Cross multiply
    684,056x = 1,026,220.08 × 210,721.16
  4. Step 4: Simplify right side
    684,056x = 216,246,285,672.89
  5. Step 5: Solve for x
    x = 216,246,285,672.89/684,056
  6. Step 6: Final answer
    x = 316,123.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.