Home / 1,009,402.80-1,392,624.11-647,026.47

Finding the Fourth Proportional to 1,009,402.80, 1,392,624.11 and 647,026.47

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Solution

The fourth proportional to 1,009,402.80, 1,392,624.11 and 647,026.47 is: 892,671.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,402.80 : 1,392,624.11 = 647,026.47 : x
  2. Step 2: Convert to fraction form
    1,009,402.80/1,392,624.11 = 647,026.47/x
  3. Step 3: Cross multiply
    1,009,402.80x = 1,392,624.11 × 647,026.47
  4. Step 4: Simplify right side
    1,009,402.80x = 901,064,663,547.76
  5. Step 5: Solve for x
    x = 901,064,663,547.76/1,009,402.80
  6. Step 6: Final answer
    x = 892,671.06

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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.