Home / 693,639.08-1,038,776.85-479,807.04

Finding the Fourth Proportional to 693,639.08, 1,038,776.85 and 479,807.04

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Solution

The fourth proportional to 693,639.08, 1,038,776.85 and 479,807.04 is: 718,547.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,639.08 : 1,038,776.85 = 479,807.04 : x
  2. Step 2: Convert to fraction form
    693,639.08/1,038,776.85 = 479,807.04/x
  3. Step 3: Cross multiply
    693,639.08x = 1,038,776.85 × 479,807.04
  4. Step 4: Simplify right side
    693,639.08x = 498,412,445,619.02
  5. Step 5: Solve for x
    x = 498,412,445,619.02/693,639.08
  6. Step 6: Final answer
    x = 718,547.24

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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.