Finding the Fourth Proportional to 839,909.17, 1,158,866.80 and 513,138.07
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Solution
The fourth proportional to 839,909.17, 1,158,866.80 and 513,138.07 is: 708,003.55
Step by Step Solution
- Step 1: Write the proportion equation
839,909.17 : 1,158,866.80 = 513,138.07 : x - Step 2: Convert to fraction form
839,909.17/1,158,866.80 = 513,138.07/x - Step 3: Cross multiply
839,909.17x = 1,158,866.80 × 513,138.07 - Step 4: Simplify right side
839,909.17x = 594,658,673,139.08 - Step 5: Solve for x
x = 594,658,673,139.08/839,909.17 - Step 6: Final answer
x = 708,003.55
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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.