Home / 767,770.20-1,152,173.70-430,810.20

Finding the Fourth Proportional to 767,770.20, 1,152,173.70 and 430,810.20

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Solution

The fourth proportional to 767,770.20, 1,152,173.70 and 430,810.20 is: 646,506.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,770.20 : 1,152,173.70 = 430,810.20 : x
  2. Step 2: Convert to fraction form
    767,770.20/1,152,173.70 = 430,810.20/x
  3. Step 3: Cross multiply
    767,770.20x = 1,152,173.70 × 430,810.20
  4. Step 4: Simplify right side
    767,770.20x = 496,368,182,131.74
  5. Step 5: Solve for x
    x = 496,368,182,131.74/767,770.20
  6. Step 6: Final answer
    x = 646,506.18

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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.