Home / 921,328.98-1,271,381.43-507,783.63

Finding the Fourth Proportional to 921,328.98, 1,271,381.43 and 507,783.63

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Solution

The fourth proportional to 921,328.98, 1,271,381.43 and 507,783.63 is: 700,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,328.98 : 1,271,381.43 = 507,783.63 : x
  2. Step 2: Convert to fraction form
    921,328.98/1,271,381.43 = 507,783.63/x
  3. Step 3: Cross multiply
    921,328.98x = 1,271,381.43 × 507,783.63
  4. Step 4: Simplify right side
    921,328.98x = 645,586,677,639.99
  5. Step 5: Solve for x
    x = 645,586,677,639.99/921,328.98
  6. Step 6: Final answer
    x = 700,712.44

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Double scale
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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.