Home / 900,886.77-1,243,223.64-492,988.68

Finding the Fourth Proportional to 900,886.77, 1,243,223.64 and 492,988.68

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Solution

The fourth proportional to 900,886.77, 1,243,223.64 and 492,988.68 is: 680,324.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,886.77 : 1,243,223.64 = 492,988.68 : x
  2. Step 2: Convert to fraction form
    900,886.77/1,243,223.64 = 492,988.68/x
  3. Step 3: Cross multiply
    900,886.77x = 1,243,223.64 × 492,988.68
  4. Step 4: Simplify right side
    900,886.77x = 612,895,181,228.40
  5. Step 5: Solve for x
    x = 612,895,181,228.40/900,886.77
  6. Step 6: Final answer
    x = 680,324.32

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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.