Home / 910,322.40-1,256,218.80-507,905.76

Finding the Fourth Proportional to 910,322.40, 1,256,218.80 and 507,905.76

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Solution

The fourth proportional to 910,322.40, 1,256,218.80 and 507,905.76 is: 700,895.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,322.40 : 1,256,218.80 = 507,905.76 : x
  2. Step 2: Convert to fraction form
    910,322.40/1,256,218.80 = 507,905.76/x
  3. Step 3: Cross multiply
    910,322.40x = 1,256,218.80 × 507,905.76
  4. Step 4: Simplify right side
    910,322.40x = 638,040,764,340.29
  5. Step 5: Solve for x
    x = 638,040,764,340.29/910,322.40
  6. Step 6: Final answer
    x = 700,895.38

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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.