Home / 910,509.60-1,365,764.40-311,417.40

Finding the Fourth Proportional to 910,509.60, 1,365,764.40 and 311,417.40

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Solution

The fourth proportional to 910,509.60, 1,365,764.40 and 311,417.40 is: 467,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,509.60 : 1,365,764.40 = 311,417.40 : x
  2. Step 2: Convert to fraction form
    910,509.60/1,365,764.40 = 311,417.40/x
  3. Step 3: Cross multiply
    910,509.60x = 1,365,764.40 × 311,417.40
  4. Step 4: Simplify right side
    910,509.60x = 425,322,798,460.56
  5. Step 5: Solve for x
    x = 425,322,798,460.56/910,509.60
  6. Step 6: Final answer
    x = 467,126.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.