Home / 709,853.10-1,064,779.65-429,917.10

Finding the Fourth Proportional to 709,853.10, 1,064,779.65 and 429,917.10

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Solution

The fourth proportional to 709,853.10, 1,064,779.65 and 429,917.10 is: 644,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,853.10 : 1,064,779.65 = 429,917.10 : x
  2. Step 2: Convert to fraction form
    709,853.10/1,064,779.65 = 429,917.10/x
  3. Step 3: Cross multiply
    709,853.10x = 1,064,779.65 × 429,917.10
  4. Step 4: Simplify right side
    709,853.10x = 457,766,979,267.02
  5. Step 5: Solve for x
    x = 457,766,979,267.02/709,853.10
  6. Step 6: Final answer
    x = 644,875.65

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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.