Home / 745,136.32-1,116,824.32-318,547.36

Finding the Fourth Proportional to 745,136.32, 1,116,824.32 and 318,547.36

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Solution

The fourth proportional to 745,136.32, 1,116,824.32 and 318,547.36 is: 477,444.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,136.32 : 1,116,824.32 = 318,547.36 : x
  2. Step 2: Convert to fraction form
    745,136.32/1,116,824.32 = 318,547.36/x
  3. Step 3: Cross multiply
    745,136.32x = 1,116,824.32 × 318,547.36
  4. Step 4: Simplify right side
    745,136.32x = 355,761,438,719.80
  5. Step 5: Solve for x
    x = 355,761,438,719.80/745,136.32
  6. Step 6: Final answer
    x = 477,444.77

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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.