Home / 759,870.64-1,139,805.73-286,445.28

Finding the Fourth Proportional to 759,870.64, 1,139,805.73 and 286,445.28

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Solution

The fourth proportional to 759,870.64, 1,139,805.73 and 286,445.28 is: 429,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,870.64 : 1,139,805.73 = 286,445.28 : x
  2. Step 2: Convert to fraction form
    759,870.64/1,139,805.73 = 286,445.28/x
  3. Step 3: Cross multiply
    759,870.64x = 1,139,805.73 × 286,445.28
  4. Step 4: Simplify right side
    759,870.64x = 326,491,971,475.45
  5. Step 5: Solve for x
    x = 326,491,971,475.45/759,870.64
  6. Step 6: Final answer
    x = 429,667.83

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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.