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Finding the Fourth Proportional to 525,999.10, 788,998.65 and 302,050.30

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Solution

The fourth proportional to 525,999.10, 788,998.65 and 302,050.30 is: 453,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,999.10 : 788,998.65 = 302,050.30 : x
  2. Step 2: Convert to fraction form
    525,999.10/788,998.65 = 302,050.30/x
  3. Step 3: Cross multiply
    525,999.10x = 788,998.65 × 302,050.30
  4. Step 4: Simplify right side
    525,999.10x = 238,317,278,932.10
  5. Step 5: Solve for x
    x = 238,317,278,932.10/525,999.10
  6. Step 6: Final answer
    x = 453,075.45

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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.