Home / 922,764.60-1,384,341.30-390,011.40

Finding the Fourth Proportional to 922,764.60, 1,384,341.30 and 390,011.40

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Solution

The fourth proportional to 922,764.60, 1,384,341.30 and 390,011.40 is: 585,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,764.60 : 1,384,341.30 = 390,011.40 : x
  2. Step 2: Convert to fraction form
    922,764.60/1,384,341.30 = 390,011.40/x
  3. Step 3: Cross multiply
    922,764.60x = 1,384,341.30 × 390,011.40
  4. Step 4: Simplify right side
    922,764.60x = 539,908,888,490.82
  5. Step 5: Solve for x
    x = 539,908,888,490.82/922,764.60
  6. Step 6: Final answer
    x = 585,099.26

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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.