Home / 712,302.16-1,068,508.80-206,871.40

Finding the Fourth Proportional to 712,302.16, 1,068,508.80 and 206,871.40

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Solution

The fourth proportional to 712,302.16, 1,068,508.80 and 206,871.40 is: 310,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,302.16 : 1,068,508.80 = 206,871.40 : x
  2. Step 2: Convert to fraction form
    712,302.16/1,068,508.80 = 206,871.40/x
  3. Step 3: Cross multiply
    712,302.16x = 1,068,508.80 × 206,871.40
  4. Step 4: Simplify right side
    712,302.16x = 221,043,911,368.32
  5. Step 5: Solve for x
    x = 221,043,911,368.32/712,302.16
  6. Step 6: Final answer
    x = 310,323.24

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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.