Home / 745,975.50-1,117,636.44-429,779.04

Finding the Fourth Proportional to 745,975.50, 1,117,636.44 and 429,779.04

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Solution

The fourth proportional to 745,975.50, 1,117,636.44 and 429,779.04 is: 643,904.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,975.50 : 1,117,636.44 = 429,779.04 : x
  2. Step 2: Convert to fraction form
    745,975.50/1,117,636.44 = 429,779.04/x
  3. Step 3: Cross multiply
    745,975.50x = 1,117,636.44 × 429,779.04
  4. Step 4: Simplify right side
    745,975.50x = 480,336,716,252.22
  5. Step 5: Solve for x
    x = 480,336,716,252.22/745,975.50
  6. Step 6: Final answer
    x = 643,904.14

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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.