Home / 637,278.39-879,465.76-346,900.53

Finding the Fourth Proportional to 637,278.39, 879,465.76 and 346,900.53

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Solution

The fourth proportional to 637,278.39, 879,465.76 and 346,900.53 is: 478,734.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,278.39 : 879,465.76 = 346,900.53 : x
  2. Step 2: Convert to fraction form
    637,278.39/879,465.76 = 346,900.53/x
  3. Step 3: Cross multiply
    637,278.39x = 879,465.76 × 346,900.53
  4. Step 4: Simplify right side
    637,278.39x = 305,087,134,095.61
  5. Step 5: Solve for x
    x = 305,087,134,095.61/637,278.39
  6. Step 6: Final answer
    x = 478,734.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.