Home / 687,061.64-1,030,599.09-260,482.74

Finding the Fourth Proportional to 687,061.64, 1,030,599.09 and 260,482.74

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Solution

The fourth proportional to 687,061.64, 1,030,599.09 and 260,482.74 is: 390,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,061.64 : 1,030,599.09 = 260,482.74 : x
  2. Step 2: Convert to fraction form
    687,061.64/1,030,599.09 = 260,482.74/x
  3. Step 3: Cross multiply
    687,061.64x = 1,030,599.09 × 260,482.74
  4. Step 4: Simplify right side
    687,061.64x = 268,453,274,804.71
  5. Step 5: Solve for x
    x = 268,453,274,804.71/687,061.64
  6. Step 6: Final answer
    x = 390,726.63

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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.