Home / 742,492.40-1,114,030.20-293,136.80

Finding the Fourth Proportional to 742,492.40, 1,114,030.20 and 293,136.80

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Solution

The fourth proportional to 742,492.40, 1,114,030.20 and 293,136.80 is: 439,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,492.40 : 1,114,030.20 = 293,136.80 : x
  2. Step 2: Convert to fraction form
    742,492.40/1,114,030.20 = 293,136.80/x
  3. Step 3: Cross multiply
    742,492.40x = 1,114,030.20 × 293,136.80
  4. Step 4: Simplify right side
    742,492.40x = 326,563,247,931.36
  5. Step 5: Solve for x
    x = 326,563,247,931.36/742,492.40
  6. Step 6: Final answer
    x = 439,820.32

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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.