Home / 526,401.30-788,435.55-433,089.30

Finding the Fourth Proportional to 526,401.30, 788,435.55 and 433,089.30

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Solution

The fourth proportional to 526,401.30, 788,435.55 and 433,089.30 is: 648,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,401.30 : 788,435.55 = 433,089.30 : x
  2. Step 2: Convert to fraction form
    526,401.30/788,435.55 = 433,089.30/x
  3. Step 3: Cross multiply
    526,401.30x = 788,435.55 × 433,089.30
  4. Step 4: Simplify right side
    526,401.30x = 341,463,000,444.62
  5. Step 5: Solve for x
    x = 341,463,000,444.62/526,401.30
  6. Step 6: Final answer
    x = 648,674.31

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Double scale
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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.