Home / 771,266.88-1,154,888.28-620,684.64

Finding the Fourth Proportional to 771,266.88, 1,154,888.28 and 620,684.64

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Solution

The fourth proportional to 771,266.88, 1,154,888.28 and 620,684.64 is: 929,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,266.88 : 1,154,888.28 = 620,684.64 : x
  2. Step 2: Convert to fraction form
    771,266.88/1,154,888.28 = 620,684.64/x
  3. Step 3: Cross multiply
    771,266.88x = 1,154,888.28 × 620,684.64
  4. Step 4: Simplify right side
    771,266.88x = 716,821,416,312.02
  5. Step 5: Solve for x
    x = 716,821,416,312.02/771,266.88
  6. Step 6: Final answer
    x = 929,407.75

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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.