Finding the Fourth Proportional to 877,154.88, 1,210,087.98 and 514,394.76
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Solution
The fourth proportional to 877,154.88, 1,210,087.98 and 514,394.76 is: 709,638.55
Step by Step Solution
- Step 1: Write the proportion equation
877,154.88 : 1,210,087.98 = 514,394.76 : x - Step 2: Convert to fraction form
877,154.88/1,210,087.98 = 514,394.76/x - Step 3: Cross multiply
877,154.88x = 1,210,087.98 × 514,394.76 - Step 4: Simplify right side
877,154.88x = 622,462,916,050.99 - Step 5: Solve for x
x = 622,462,916,050.99/877,154.88 - Step 6: Final answer
x = 709,638.55
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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.