Home / 672,140.10-1,008,210.15-506,252.10

Finding the Fourth Proportional to 672,140.10, 1,008,210.15 and 506,252.10

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Solution

The fourth proportional to 672,140.10, 1,008,210.15 and 506,252.10 is: 759,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,140.10 : 1,008,210.15 = 506,252.10 : x
  2. Step 2: Convert to fraction form
    672,140.10/1,008,210.15 = 506,252.10/x
  3. Step 3: Cross multiply
    672,140.10x = 1,008,210.15 × 506,252.10
  4. Step 4: Simplify right side
    672,140.10x = 510,408,505,678.82
  5. Step 5: Solve for x
    x = 510,408,505,678.82/672,140.10
  6. Step 6: Final answer
    x = 759,378.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.