Home / 630,842.18-870,551.01-358,904.22

Finding the Fourth Proportional to 630,842.18, 870,551.01 and 358,904.22

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Solution

The fourth proportional to 630,842.18, 870,551.01 and 358,904.22 is: 495,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,842.18 : 870,551.01 = 358,904.22 : x
  2. Step 2: Convert to fraction form
    630,842.18/870,551.01 = 358,904.22/x
  3. Step 3: Cross multiply
    630,842.18x = 870,551.01 × 358,904.22
  4. Step 4: Simplify right side
    630,842.18x = 312,444,427,949.70
  5. Step 5: Solve for x
    x = 312,444,427,949.70/630,842.18
  6. Step 6: Final answer
    x = 495,281.45

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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.