Home / 1,064,320.20-1,596,917.70-390,724.20

Finding the Fourth Proportional to 1,064,320.20, 1,596,917.70 and 390,724.20

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Solution

The fourth proportional to 1,064,320.20, 1,596,917.70 and 390,724.20 is: 586,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,320.20 : 1,596,917.70 = 390,724.20 : x
  2. Step 2: Convert to fraction form
    1,064,320.20/1,596,917.70 = 390,724.20/x
  3. Step 3: Cross multiply
    1,064,320.20x = 1,596,917.70 × 390,724.20
  4. Step 4: Simplify right side
    1,064,320.20x = 623,954,390,798.34
  5. Step 5: Solve for x
    x = 623,954,390,798.34/1,064,320.20
  6. Step 6: Final answer
    x = 586,246.87

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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.