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Finding the Fourth Proportional to 549,683.60, 824,525.40 and 455,205.20

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Solution

The fourth proportional to 549,683.60, 824,525.40 and 455,205.20 is: 682,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,683.60 : 824,525.40 = 455,205.20 : x
  2. Step 2: Convert to fraction form
    549,683.60/824,525.40 = 455,205.20/x
  3. Step 3: Cross multiply
    549,683.60x = 824,525.40 × 455,205.20
  4. Step 4: Simplify right side
    549,683.60x = 375,328,249,612.08
  5. Step 5: Solve for x
    x = 375,328,249,612.08/549,683.60
  6. Step 6: Final answer
    x = 682,807.80

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Similar ratio
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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.