Home / 425,631.60-637,669.80-346,316.40

Finding the Fourth Proportional to 425,631.60, 637,669.80 and 346,316.40

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Solution

The fourth proportional to 425,631.60, 637,669.80 and 346,316.40 is: 518,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,631.60 : 637,669.80 = 346,316.40 : x
  2. Step 2: Convert to fraction form
    425,631.60/637,669.80 = 346,316.40/x
  3. Step 3: Cross multiply
    425,631.60x = 637,669.80 × 346,316.40
  4. Step 4: Simplify right side
    425,631.60x = 220,835,509,524.72
  5. Step 5: Solve for x
    x = 220,835,509,524.72/425,631.60
  6. Step 6: Final answer
    x = 518,841.90

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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.