Home / 684,312.66-1,026,403.02-210,870.90

Finding the Fourth Proportional to 684,312.66, 1,026,403.02 and 210,870.90

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Solution

The fourth proportional to 684,312.66, 1,026,403.02 and 210,870.90 is: 316,286.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,312.66 : 1,026,403.02 = 210,870.90 : x
  2. Step 2: Convert to fraction form
    684,312.66/1,026,403.02 = 210,870.90/x
  3. Step 3: Cross multiply
    684,312.66x = 1,026,403.02 × 210,870.90
  4. Step 4: Simplify right side
    684,312.66x = 216,438,528,590.12
  5. Step 5: Solve for x
    x = 216,438,528,590.12/684,312.66
  6. Step 6: Final answer
    x = 316,286.02

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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.