Home / 760,496.42-1,049,485.07-420,964.67

Finding the Fourth Proportional to 760,496.42, 1,049,485.07 and 420,964.67

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Solution

The fourth proportional to 760,496.42, 1,049,485.07 and 420,964.67 is: 580,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,496.42 : 1,049,485.07 = 420,964.67 : x
  2. Step 2: Convert to fraction form
    760,496.42/1,049,485.07 = 420,964.67/x
  3. Step 3: Cross multiply
    760,496.42x = 1,049,485.07 × 420,964.67
  4. Step 4: Simplify right side
    760,496.42x = 441,796,139,838.60
  5. Step 5: Solve for x
    x = 441,796,139,838.60/760,496.42
  6. Step 6: Final answer
    x = 580,931.25

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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.