Home / 684,155.04-1,026,232.52-210,840.40

Finding the Fourth Proportional to 684,155.04, 1,026,232.52 and 210,840.40

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Solution

The fourth proportional to 684,155.04, 1,026,232.52 and 210,840.40 is: 316,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,155.04 : 1,026,232.52 = 210,840.40 : x
  2. Step 2: Convert to fraction form
    684,155.04/1,026,232.52 = 210,840.40/x
  3. Step 3: Cross multiply
    684,155.04x = 1,026,232.52 × 210,840.40
  4. Step 4: Simplify right side
    684,155.04x = 216,371,275,009.81
  5. Step 5: Solve for x
    x = 216,371,275,009.81/684,155.04
  6. Step 6: Final answer
    x = 316,260.59

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Double scale
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Similar ratio
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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.