Home / 715,579.10-1,073,368.65-435,643.10

Finding the Fourth Proportional to 715,579.10, 1,073,368.65 and 435,643.10

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Solution

The fourth proportional to 715,579.10, 1,073,368.65 and 435,643.10 is: 653,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,579.10 : 1,073,368.65 = 435,643.10 : x
  2. Step 2: Convert to fraction form
    715,579.10/1,073,368.65 = 435,643.10/x
  3. Step 3: Cross multiply
    715,579.10x = 1,073,368.65 × 435,643.10
  4. Step 4: Simplify right side
    715,579.10x = 467,605,646,128.82
  5. Step 5: Solve for x
    x = 467,605,646,128.82/715,579.10
  6. Step 6: Final answer
    x = 653,464.65

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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.