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Finding the Fourth Proportional to 630,526.37, 870,100.02 and 358,556.51

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Solution

The fourth proportional to 630,526.37, 870,100.02 and 358,556.51 is: 494,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,526.37 : 870,100.02 = 358,556.51 : x
  2. Step 2: Convert to fraction form
    630,526.37/870,100.02 = 358,556.51/x
  3. Step 3: Cross multiply
    630,526.37x = 870,100.02 × 358,556.51
  4. Step 4: Simplify right side
    630,526.37x = 311,980,022,171.63
  5. Step 5: Solve for x
    x = 311,980,022,171.63/630,526.37
  6. Step 6: Final answer
    x = 494,792.98

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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.