Home / 630,501.15-870,110.78-358,608.18

Finding the Fourth Proportional to 630,501.15, 870,110.78 and 358,608.18

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Solution

The fourth proportional to 630,501.15, 870,110.78 and 358,608.18 is: 494,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,501.15 : 870,110.78 = 358,608.18 : x
  2. Step 2: Convert to fraction form
    630,501.15/870,110.78 = 358,608.18/x
  3. Step 3: Cross multiply
    630,501.15x = 870,110.78 × 358,608.18
  4. Step 4: Simplify right side
    630,501.15x = 312,028,844,684.06
  5. Step 5: Solve for x
    x = 312,028,844,684.06/630,501.15
  6. Step 6: Final answer
    x = 494,890.20

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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.