Finding the Fourth Proportional to 1,565,743.76, 2,160,734.64 and 877,417.28
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Solution
The fourth proportional to 1,565,743.76, 2,160,734.64 and 877,417.28 is: 1,210,840.47
Step by Step Solution
- Step 1: Write the proportion equation
1,565,743.76 : 2,160,734.64 = 877,417.28 : x - Step 2: Convert to fraction form
1,565,743.76/2,160,734.64 = 877,417.28/x - Step 3: Cross multiply
1,565,743.76x = 2,160,734.64 × 877,417.28 - Step 4: Simplify right side
1,565,743.76x = 1,895,865,910,630.58 - Step 5: Solve for x
x = 1,895,865,910,630.58/1,565,743.76 - Step 6: Final answer
x = 1,210,840.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.