Home / 909,086.12-1,254,547.61-501,203.80

Finding the Fourth Proportional to 909,086.12, 1,254,547.61 and 501,203.80

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Solution

The fourth proportional to 909,086.12, 1,254,547.61 and 501,203.80 is: 691,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,086.12 : 1,254,547.61 = 501,203.80 : x
  2. Step 2: Convert to fraction form
    909,086.12/1,254,547.61 = 501,203.80/x
  3. Step 3: Cross multiply
    909,086.12x = 1,254,547.61 × 501,203.80
  4. Step 4: Simplify right side
    909,086.12x = 628,784,030,354.60
  5. Step 5: Solve for x
    x = 628,784,030,354.60/909,086.12
  6. Step 6: Final answer
    x = 691,666.08

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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.