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Finding the Fourth Proportional to 403,315.70, 604,973.55 and 340,330.10

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Solution

The fourth proportional to 403,315.70, 604,973.55 and 340,330.10 is: 510,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,315.70 : 604,973.55 = 340,330.10 : x
  2. Step 2: Convert to fraction form
    403,315.70/604,973.55 = 340,330.10/x
  3. Step 3: Cross multiply
    403,315.70x = 604,973.55 × 340,330.10
  4. Step 4: Simplify right side
    403,315.70x = 205,890,708,768.86
  5. Step 5: Solve for x
    x = 205,890,708,768.86/403,315.70
  6. Step 6: Final answer
    x = 510,495.15

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Similar ratio
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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.