Home / 773,487.36-1,066,698.72-515,509.20

Finding the Fourth Proportional to 773,487.36, 1,066,698.72 and 515,509.20

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Solution

The fourth proportional to 773,487.36, 1,066,698.72 and 515,509.20 is: 710,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,487.36 : 1,066,698.72 = 515,509.20 : x
  2. Step 2: Convert to fraction form
    773,487.36/1,066,698.72 = 515,509.20/x
  3. Step 3: Cross multiply
    773,487.36x = 1,066,698.72 × 515,509.20
  4. Step 4: Simplify right side
    773,487.36x = 549,893,003,788.22
  5. Step 5: Solve for x
    x = 549,893,003,788.22/773,487.36
  6. Step 6: Final answer
    x = 710,926.94

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Double scale
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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.