Home / 745,337.21-1,028,483.51-418,583.88

Finding the Fourth Proportional to 745,337.21, 1,028,483.51 and 418,583.88

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Solution

The fourth proportional to 745,337.21, 1,028,483.51 and 418,583.88 is: 577,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,337.21 : 1,028,483.51 = 418,583.88 : x
  2. Step 2: Convert to fraction form
    745,337.21/1,028,483.51 = 418,583.88/x
  3. Step 3: Cross multiply
    745,337.21x = 1,028,483.51 × 418,583.88
  4. Step 4: Simplify right side
    745,337.21x = 430,506,616,038.90
  5. Step 5: Solve for x
    x = 430,506,616,038.90/745,337.21
  6. Step 6: Final answer
    x = 577,599.79

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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.