Finding the Fourth Proportional to 1,564,907.40, 2,349,110.70 and 1,211,488.20
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Solution
The fourth proportional to 1,564,907.40, 2,349,110.70 and 1,211,488.20 is: 1,818,586.77
Step by Step Solution
- Step 1: Write the proportion equation
1,564,907.40 : 2,349,110.70 = 1,211,488.20 : x - Step 2: Convert to fraction form
1,564,907.40/2,349,110.70 = 1,211,488.20/x - Step 3: Cross multiply
1,564,907.40x = 2,349,110.70 × 1,211,488.20 - Step 4: Simplify right side
1,564,907.40x = 2,845,919,893,543.74 - Step 5: Solve for x
x = 2,845,919,893,543.74/1,564,907.40 - Step 6: Final answer
x = 1,818,586.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.