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Finding the Fourth Proportional to 571,000.89, 788,007.03 and 316,352.10

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Solution

The fourth proportional to 571,000.89, 788,007.03 and 316,352.10 is: 436,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,000.89 : 788,007.03 = 316,352.10 : x
  2. Step 2: Convert to fraction form
    571,000.89/788,007.03 = 316,352.10/x
  3. Step 3: Cross multiply
    571,000.89x = 788,007.03 × 316,352.10
  4. Step 4: Simplify right side
    571,000.89x = 249,287,678,755.26
  5. Step 5: Solve for x
    x = 249,287,678,755.26/571,000.89
  6. Step 6: Final answer
    x = 436,580.19

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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.