Home / 710,821.20-1,064,676.60-429,848.40

Finding the Fourth Proportional to 710,821.20, 1,064,676.60 and 429,848.40

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Solution

The fourth proportional to 710,821.20, 1,064,676.60 and 429,848.40 is: 643,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,821.20 : 1,064,676.60 = 429,848.40 : x
  2. Step 2: Convert to fraction form
    710,821.20/1,064,676.60 = 429,848.40/x
  3. Step 3: Cross multiply
    710,821.20x = 1,064,676.60 × 429,848.40
  4. Step 4: Simplify right side
    710,821.20x = 457,649,533,027.44
  5. Step 5: Solve for x
    x = 457,649,533,027.44/710,821.20
  6. Step 6: Final answer
    x = 643,832.14

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1.5x scale

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.