Home / 909,741.20-1,255,415.64-507,333.20

Finding the Fourth Proportional to 909,741.20, 1,255,415.64 and 507,333.20

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Solution

The fourth proportional to 909,741.20, 1,255,415.64 and 507,333.20 is: 700,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,741.20 : 1,255,415.64 = 507,333.20 : x
  2. Step 2: Convert to fraction form
    909,741.20/1,255,415.64 = 507,333.20/x
  3. Step 3: Cross multiply
    909,741.20x = 1,255,415.64 × 507,333.20
  4. Step 4: Simplify right side
    909,741.20x = 636,914,033,971.25
  5. Step 5: Solve for x
    x = 636,914,033,971.25/909,741.20
  6. Step 6: Final answer
    x = 700,104.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.