Home / 788,322.87-1,087,885.28-425,746.80

Finding the Fourth Proportional to 788,322.87, 1,087,885.28 and 425,746.80

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Solution

The fourth proportional to 788,322.87, 1,087,885.28 and 425,746.80 is: 587,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,322.87 : 1,087,885.28 = 425,746.80 : x
  2. Step 2: Convert to fraction form
    788,322.87/1,087,885.28 = 425,746.80/x
  3. Step 3: Cross multiply
    788,322.87x = 1,087,885.28 × 425,746.80
  4. Step 4: Simplify right side
    788,322.87x = 463,163,674,598.37
  5. Step 5: Solve for x
    x = 463,163,674,598.37/788,322.87
  6. Step 6: Final answer
    x = 587,530.43

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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.