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Finding the Fourth Proportional to 630,635.04, 870,244.05 and 358,696.93

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Solution

The fourth proportional to 630,635.04, 870,244.05 and 358,696.93 is: 494,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,635.04 : 870,244.05 = 358,696.93 : x
  2. Step 2: Convert to fraction form
    630,635.04/870,244.05 = 358,696.93/x
  3. Step 3: Cross multiply
    630,635.04x = 870,244.05 × 358,696.93
  4. Step 4: Simplify right side
    630,635.04x = 312,153,872,334.54
  5. Step 5: Solve for x
    x = 312,153,872,334.54/630,635.04
  6. Step 6: Final answer
    x = 494,983.39

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1.5x scale

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.