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Finding the Fourth Proportional to 688,391.46, 949,714.74 and 507,533.31

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Solution

The fourth proportional to 688,391.46, 949,714.74 and 507,533.31 is: 700,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,391.46 : 949,714.74 = 507,533.31 : x
  2. Step 2: Convert to fraction form
    688,391.46/949,714.74 = 507,533.31/x
  3. Step 3: Cross multiply
    688,391.46x = 949,714.74 × 507,533.31
  4. Step 4: Simplify right side
    688,391.46x = 482,011,865,547.99
  5. Step 5: Solve for x
    x = 482,011,865,547.99/688,391.46
  6. Step 6: Final answer
    x = 700,200.24

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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.