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Finding the Fourth Proportional to 672,705.25, 928,340.51 and 366,779.14

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Solution

The fourth proportional to 672,705.25, 928,340.51 and 366,779.14 is: 506,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,705.25 : 928,340.51 = 366,779.14 : x
  2. Step 2: Convert to fraction form
    672,705.25/928,340.51 = 366,779.14/x
  3. Step 3: Cross multiply
    672,705.25x = 928,340.51 × 366,779.14
  4. Step 4: Simplify right side
    672,705.25x = 340,495,932,051.07
  5. Step 5: Solve for x
    x = 340,495,932,051.07/672,705.25
  6. Step 6: Final answer
    x = 506,159.17

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Double scale
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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.