Home / 712,615.36-1,068,897.12-213,966.40

Finding the Fourth Proportional to 712,615.36, 1,068,897.12 and 213,966.40

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Solution

The fourth proportional to 712,615.36, 1,068,897.12 and 213,966.40 is: 320,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,615.36 : 1,068,897.12 = 213,966.40 : x
  2. Step 2: Convert to fraction form
    712,615.36/1,068,897.12 = 213,966.40/x
  3. Step 3: Cross multiply
    712,615.36x = 1,068,897.12 × 213,966.40
  4. Step 4: Simplify right side
    712,615.36x = 228,708,068,736.77
  5. Step 5: Solve for x
    x = 228,708,068,736.77/712,615.36
  6. Step 6: Final answer
    x = 320,941.82

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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.