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Finding the Fourth Proportional to 559,970.20, 839,955.30 and 507,482.20

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Solution

The fourth proportional to 559,970.20, 839,955.30 and 507,482.20 is: 761,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,970.20 : 839,955.30 = 507,482.20 : x
  2. Step 2: Convert to fraction form
    559,970.20/839,955.30 = 507,482.20/x
  3. Step 3: Cross multiply
    559,970.20x = 839,955.30 × 507,482.20
  4. Step 4: Simplify right side
    559,970.20x = 426,262,363,545.66
  5. Step 5: Solve for x
    x = 426,262,363,545.66/559,970.20
  6. Step 6: Final answer
    x = 761,223.30

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Double scale
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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.