Home / 909,888.28-1,255,637.16-501,993.40

Finding the Fourth Proportional to 909,888.28, 1,255,637.16 and 501,993.40

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Solution

The fourth proportional to 909,888.28, 1,255,637.16 and 501,993.40 is: 692,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,888.28 : 1,255,637.16 = 501,993.40 : x
  2. Step 2: Convert to fraction form
    909,888.28/1,255,637.16 = 501,993.40/x
  3. Step 3: Cross multiply
    909,888.28x = 1,255,637.16 × 501,993.40
  4. Step 4: Simplify right side
    909,888.28x = 630,321,567,114.74
  5. Step 5: Solve for x
    x = 630,321,567,114.74/909,888.28
  6. Step 6: Final answer
    x = 692,746.11

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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.