Finding the Fourth Proportional to 724,971, 1,000,432.14 and 402,701.70
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Solution
The fourth proportional to 724,971, 1,000,432.14 and 402,701.70 is: 555,712.88
Step by Step Solution
- Step 1: Write the proportion equation
724,971 : 1,000,432.14 = 402,701.70 : x - Step 2: Convert to fraction form
724,971/1,000,432.14 = 402,701.70/x - Step 3: Cross multiply
724,971x = 1,000,432.14 × 402,701.70 - Step 4: Simplify right side
724,971x = 402,875,723,512.64 - Step 5: Solve for x
x = 402,875,723,512.64/724,971 - Step 6: Final answer
x = 555,712.88
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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.