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Finding the Fourth Proportional to 608,004.70, 912,007.05 and 578,974.30

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Solution

The fourth proportional to 608,004.70, 912,007.05 and 578,974.30 is: 868,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,004.70 : 912,007.05 = 578,974.30 : x
  2. Step 2: Convert to fraction form
    608,004.70/912,007.05 = 578,974.30/x
  3. Step 3: Cross multiply
    608,004.70x = 912,007.05 × 578,974.30
  4. Step 4: Simplify right side
    608,004.70x = 528,028,643,368.82
  5. Step 5: Solve for x
    x = 528,028,643,368.82/608,004.70
  6. Step 6: Final answer
    x = 868,461.45

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Similar ratio
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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.