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Finding the Fourth Proportional to 660,089.40, 910,630.30 and 430,593.82

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Solution

The fourth proportional to 660,089.40, 910,630.30 and 430,593.82 is: 594,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,089.40 : 910,630.30 = 430,593.82 : x
  2. Step 2: Convert to fraction form
    660,089.40/910,630.30 = 430,593.82/x
  3. Step 3: Cross multiply
    660,089.40x = 910,630.30 × 430,593.82
  4. Step 4: Simplify right side
    660,089.40x = 392,111,779,484.75
  5. Step 5: Solve for x
    x = 392,111,779,484.75/660,089.40
  6. Step 6: Final answer
    x = 594,028.29

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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.