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Finding the Fourth Proportional to 553,752.20, 830,109.90 and 433,742.60

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Solution

The fourth proportional to 553,752.20, 830,109.90 and 433,742.60 is: 650,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,752.20 : 830,109.90 = 433,742.60 : x
  2. Step 2: Convert to fraction form
    553,752.20/830,109.90 = 433,742.60/x
  3. Step 3: Cross multiply
    553,752.20x = 830,109.90 × 433,742.60
  4. Step 4: Simplify right side
    553,752.20x = 360,054,026,311.74
  5. Step 5: Solve for x
    x = 360,054,026,311.74/553,752.20
  6. Step 6: Final answer
    x = 650,207.85

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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.