Home / 780,011.95-1,076,397.17-435,826.75

Finding the Fourth Proportional to 780,011.95, 1,076,397.17 and 435,826.75

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Solution

The fourth proportional to 780,011.95, 1,076,397.17 and 435,826.75 is: 601,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,011.95 : 1,076,397.17 = 435,826.75 : x
  2. Step 2: Convert to fraction form
    780,011.95/1,076,397.17 = 435,826.75/x
  3. Step 3: Cross multiply
    780,011.95x = 1,076,397.17 × 435,826.75
  4. Step 4: Simplify right side
    780,011.95x = 469,122,680,310.30
  5. Step 5: Solve for x
    x = 469,122,680,310.30/780,011.95
  6. Step 6: Final answer
    x = 601,430.12

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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.