Home / 760,151.30-1,139,570.85-386,174.30

Finding the Fourth Proportional to 760,151.30, 1,139,570.85 and 386,174.30

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Solution

The fourth proportional to 760,151.30, 1,139,570.85 and 386,174.30 is: 578,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,151.30 : 1,139,570.85 = 386,174.30 : x
  2. Step 2: Convert to fraction form
    760,151.30/1,139,570.85 = 386,174.30/x
  3. Step 3: Cross multiply
    760,151.30x = 1,139,570.85 × 386,174.30
  4. Step 4: Simplify right side
    760,151.30x = 440,072,975,299.16
  5. Step 5: Solve for x
    x = 440,072,975,299.16/760,151.30
  6. Step 6: Final answer
    x = 578,928.14

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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.