Home / 974,457.40-1,461,686.10-638,534.20

Finding the Fourth Proportional to 974,457.40, 1,461,686.10 and 638,534.20

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Solution

The fourth proportional to 974,457.40, 1,461,686.10 and 638,534.20 is: 957,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,457.40 : 1,461,686.10 = 638,534.20 : x
  2. Step 2: Convert to fraction form
    974,457.40/1,461,686.10 = 638,534.20/x
  3. Step 3: Cross multiply
    974,457.40x = 1,461,686.10 × 638,534.20
  4. Step 4: Simplify right side
    974,457.40x = 933,336,564,514.62
  5. Step 5: Solve for x
    x = 933,336,564,514.62/974,457.40
  6. Step 6: Final answer
    x = 957,801.30

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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.