Home / 684,309.16-1,026,397.77-210,867.40

Finding the Fourth Proportional to 684,309.16, 1,026,397.77 and 210,867.40

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Solution

The fourth proportional to 684,309.16, 1,026,397.77 and 210,867.40 is: 316,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,309.16 : 1,026,397.77 = 210,867.40 : x
  2. Step 2: Convert to fraction form
    684,309.16/1,026,397.77 = 210,867.40/x
  3. Step 3: Cross multiply
    684,309.16x = 1,026,397.77 × 210,867.40
  4. Step 4: Simplify right side
    684,309.16x = 216,433,829,125.70
  5. Step 5: Solve for x
    x = 216,433,829,125.70/684,309.16
  6. Step 6: Final answer
    x = 316,280.77

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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.