Home / 912,327.03-1,258,979.54-498,873.45

Finding the Fourth Proportional to 912,327.03, 1,258,979.54 and 498,873.45

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Solution

The fourth proportional to 912,327.03, 1,258,979.54 and 498,873.45 is: 688,427.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,327.03 : 1,258,979.54 = 498,873.45 : x
  2. Step 2: Convert to fraction form
    912,327.03/1,258,979.54 = 498,873.45/x
  3. Step 3: Cross multiply
    912,327.03x = 1,258,979.54 × 498,873.45
  4. Step 4: Simplify right side
    912,327.03x = 628,071,464,104.85
  5. Step 5: Solve for x
    x = 628,071,464,104.85/912,327.03
  6. Step 6: Final answer
    x = 688,427.99

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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.