Home / 951,429.80-1,312,985.70-521,708.84

Finding the Fourth Proportional to 951,429.80, 1,312,985.70 and 521,708.84

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Solution

The fourth proportional to 951,429.80, 1,312,985.70 and 521,708.84 is: 719,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,429.80 : 1,312,985.70 = 521,708.84 : x
  2. Step 2: Convert to fraction form
    951,429.80/1,312,985.70 = 521,708.84/x
  3. Step 3: Cross multiply
    951,429.80x = 1,312,985.70 × 521,708.84
  4. Step 4: Simplify right side
    951,429.80x = 684,996,246,483.59
  5. Step 5: Solve for x
    x = 684,996,246,483.59/951,429.80
  6. Step 6: Final answer
    x = 719,965.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.