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Finding the Fourth Proportional to 526,281.30, 788,255.55 and 407,567.70

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Solution

The fourth proportional to 526,281.30, 788,255.55 and 407,567.70 is: 610,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,281.30 : 788,255.55 = 407,567.70 : x
  2. Step 2: Convert to fraction form
    526,281.30/788,255.55 = 407,567.70/x
  3. Step 3: Cross multiply
    526,281.30x = 788,255.55 × 407,567.70
  4. Step 4: Simplify right side
    526,281.30x = 321,267,501,525.74
  5. Step 5: Solve for x
    x = 321,267,501,525.74/526,281.30
  6. Step 6: Final answer
    x = 610,448.26

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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.