Home / 487,029.20-730,543.80-434,152.40

Finding the Fourth Proportional to 487,029.20, 730,543.80 and 434,152.40

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Solution

The fourth proportional to 487,029.20, 730,543.80 and 434,152.40 is: 651,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,029.20 : 730,543.80 = 434,152.40 : x
  2. Step 2: Convert to fraction form
    487,029.20/730,543.80 = 434,152.40/x
  3. Step 3: Cross multiply
    487,029.20x = 730,543.80 × 434,152.40
  4. Step 4: Simplify right side
    487,029.20x = 317,167,344,075.12
  5. Step 5: Solve for x
    x = 317,167,344,075.12/487,029.20
  6. Step 6: Final answer
    x = 651,228.60

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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.