Home / 900,553.81-1,242,774.06-492,646.90

Finding the Fourth Proportional to 900,553.81, 1,242,774.06 and 492,646.90

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Solution

The fourth proportional to 900,553.81, 1,242,774.06 and 492,646.90 is: 679,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,553.81 : 1,242,774.06 = 492,646.90 : x
  2. Step 2: Convert to fraction form
    900,553.81/1,242,774.06 = 492,646.90/x
  3. Step 3: Cross multiply
    900,553.81x = 1,242,774.06 × 492,646.90
  4. Step 4: Simplify right side
    900,553.81x = 612,248,788,059.41
  5. Step 5: Solve for x
    x = 612,248,788,059.41/900,553.81
  6. Step 6: Final answer
    x = 679,858.08

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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.