Finding the Fourth Proportional to 695,156.13, 958,820.76 and 637,980.12
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Solution
The fourth proportional to 695,156.13, 958,820.76 and 637,980.12 is: 879,958.55
Step by Step Solution
- Step 1: Write the proportion equation
695,156.13 : 958,820.76 = 637,980.12 : x - Step 2: Convert to fraction form
695,156.13/958,820.76 = 637,980.12/x - Step 3: Cross multiply
695,156.13x = 958,820.76 × 637,980.12 - Step 4: Simplify right side
695,156.13x = 611,708,583,523.29 - Step 5: Solve for x
x = 611,708,583,523.29/695,156.13 - Step 6: Final answer
x = 879,958.55
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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.