Home / 674,856.03-931,312.39-402,947.69

Finding the Fourth Proportional to 674,856.03, 931,312.39 and 402,947.69

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Solution

The fourth proportional to 674,856.03, 931,312.39 and 402,947.69 is: 556,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,856.03 : 931,312.39 = 402,947.69 : x
  2. Step 2: Convert to fraction form
    674,856.03/931,312.39 = 402,947.69/x
  3. Step 3: Cross multiply
    674,856.03x = 931,312.39 × 402,947.69
  4. Step 4: Simplify right side
    674,856.03x = 375,270,171,562.32
  5. Step 5: Solve for x
    x = 375,270,171,562.32/674,856.03
  6. Step 6: Final answer
    x = 556,074.41

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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.