Home / 900,501.60-1,242,691.79-492,603.33

Finding the Fourth Proportional to 900,501.60, 1,242,691.79 and 492,603.33

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Solution

The fourth proportional to 900,501.60, 1,242,691.79 and 492,603.33 is: 679,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,501.60 : 1,242,691.79 = 492,603.33 : x
  2. Step 2: Convert to fraction form
    900,501.60/1,242,691.79 = 492,603.33/x
  3. Step 3: Cross multiply
    900,501.60x = 1,242,691.79 × 492,603.33
  4. Step 4: Simplify right side
    900,501.60x = 612,154,111,454.64
  5. Step 5: Solve for x
    x = 612,154,111,454.64/900,501.60
  6. Step 6: Final answer
    x = 679,792.36

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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.