Home / 724,712.64-1,000,070.06-402,443.34

Finding the Fourth Proportional to 724,712.64, 1,000,070.06 and 402,443.34

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Solution

The fourth proportional to 724,712.64, 1,000,070.06 and 402,443.34 is: 555,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,712.64 : 1,000,070.06 = 402,443.34 : x
  2. Step 2: Convert to fraction form
    724,712.64/1,000,070.06 = 402,443.34/x
  3. Step 3: Cross multiply
    724,712.64x = 1,000,070.06 × 402,443.34
  4. Step 4: Simplify right side
    724,712.64x = 402,471,533,168.18
  5. Step 5: Solve for x
    x = 402,471,533,168.18/724,712.64
  6. Step 6: Final answer
    x = 555,353.27

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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.