Finding the Fourth Proportional to 708,650.62, 977,900.78 and 402,686.08
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Solution
The fourth proportional to 708,650.62, 977,900.78 and 402,686.08 is: 555,685.72
Step by Step Solution
- Step 1: Write the proportion equation
708,650.62 : 977,900.78 = 402,686.08 : x - Step 2: Convert to fraction form
708,650.62/977,900.78 = 402,686.08/x - Step 3: Cross multiply
708,650.62x = 977,900.78 × 402,686.08 - Step 4: Simplify right side
708,650.62x = 393,787,031,727.14 - Step 5: Solve for x
x = 393,787,031,727.14/708,650.62 - Step 6: Final answer
x = 555,685.72
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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.