Home / 950,729.96-1,312,017.67-521,000.86

Finding the Fourth Proportional to 950,729.96, 1,312,017.67 and 521,000.86

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Solution

The fourth proportional to 950,729.96, 1,312,017.67 and 521,000.86 is: 718,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,729.96 : 1,312,017.67 = 521,000.86 : x
  2. Step 2: Convert to fraction form
    950,729.96/1,312,017.67 = 521,000.86/x
  3. Step 3: Cross multiply
    950,729.96x = 1,312,017.67 × 521,000.86
  4. Step 4: Simplify right side
    950,729.96x = 683,562,335,701.75
  5. Step 5: Solve for x
    x = 683,562,335,701.75/950,729.96
  6. Step 6: Final answer
    x = 718,986.85

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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.