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Finding the Fourth Proportional to 571,148.80, 788,210.93 and 316,483.58

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Solution

The fourth proportional to 571,148.80, 788,210.93 and 316,483.58 is: 436,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,148.80 : 788,210.93 = 316,483.58 : x
  2. Step 2: Convert to fraction form
    571,148.80/788,210.93 = 316,483.58/x
  3. Step 3: Cross multiply
    571,148.80x = 788,210.93 × 316,483.58
  4. Step 4: Simplify right side
    571,148.80x = 249,455,815,339.11
  5. Step 5: Solve for x
    x = 249,455,815,339.11/571,148.80
  6. Step 6: Final answer
    x = 436,761.52

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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.